RDNA3 - AMD's Zen Graphics Moment

Annotated AD102 die-shot by Nemez - / 1572280097163337729
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[@ThorsShadow]

When the world needed him most, he returned.

[@JK-zx3go]

Spot on

[@grimlock8369]

This

[@IBZORK]

Arrrritght guys howse it goin

[@ekinteko]

This was an obvious coming. Doing chiplets on a CPU is very difficult and problematic. AMD have accomplished that, they're gliding through the advancements and easily dominating Intel. Doing chiplets on GPU is much easier than for CPUs and less problematic. Since AMD have mastered chiplets, it was obvious this was the next-step. The last point would be an APU, or mixed processor with CPU and GPU based on a chiplet design. But I don't think that's where they're going, AMD will likely stick with a Monolithic Design here for better efficiency on x86 Mobile Devices. I would like to see this CPU+GPU chiplet design with ARMv9 architecture as that's very interesting for HEDT, Servers, and Supercomputers.

[@TestarossaF110]

@@ekinteko wild APU's are coming but afaik it's all still for mobile. Wonder how much FPGAs (Xillinx) will influence the future of AMD.

[@ferdievanschalkwyk1669]

The wafer calculator is still available on the internet way back machine. Also, the calculations are done in JavaScript, so it may be possible to save it locally for future use.

[@ArtisChronicles]

It would be great if it could be saved locally.

[@N0N0111]

@@ArtisChronicles I bet you could download the whole website and emulate it :D

[@teaser6089]

Yeah just open in on WB and then look at the Java Script and then copy paste it

[@teaser6089]

@@N0N0111 You don't emulate it, you can run it, Javascript is a supported language on most computers now isn't it.

[@dondraper4438]

@@teaser6089 "JavaScript is a supported language on all browsers* ...." Fixed it for you.

[@aggamerytttv]

Man, this is so fascinating! I know you had issues with this content, but your coverage is great because no one else goes this deep into CPU and GPU architectures. It’s very interesting and educational. Please keep this up.

[@CrackaSlapYa]

@@randomguydoes2901 LOLOLOL. You SOLELY get your info from this Numbnut? Dude, GD. Thats really stupid. The guy is wrong 90% of the time, gets buttrage and vanishes for months, then reappears to get whack-a-moled again.

[@N0N0111]

No one can do it like Jim. He just walks us through how the great checkmate in the chip industry was started.

[@orangeduck474]

Always look forward to your videos, been watching them for last 6 years now. Thanks Jim!

[@benjaminoechsli1941]

We've been waiting for years for Radeon to have its "Ryzen moment". It's finally here. And as Jim said, Zen 1 was just the generation that made people sit up and take notice of AMD again. Zen 2 is when Intel started to feel the pain. Exciting!

[@ArtisChronicles]

I was definitely hoping/expecting this a bit sooner. The rx 5xxx cards were the generation I was really hoping this would show up on.

[@MaddoScientisto-fb3kb]

@Transistor Jump that's mostly issue of pricing, not technological inferiority. Zen 3 alone is still dwarfing Intel in retail sales precisely because of it's value and price reduction after Zen 4 launch. AMD's strategy seems to be aimed at more profit margin with Zen 4 until Zen 3 is sold out, then they can both lower prices for regular PUs and offer 3D variants of Zen 4 which will outcompete Intel in gaming (the only sphere Intel has advantage in), while Intel itself has very limited options to counter 3Ds.

[@ithkul]

@Transistor Jump Nah, they about dead-even if you running the silicon at sane power targets. Raptor Lake is meh at best, just a minor refresh of Alder Lake. Intel just boost it the silicon further and add more L2 cache/E-cores to keep slightly ahead on some synthetic benchmarks at the expense of power consumption. The platform cost gap will narrow once B series motherboards on AMD front come out.

[@dondraper4438]

@Transistor Jump Gaming performance wise they are about the same. Multi threaded performance is where the 13600k eats the 7600x's lunch. However, it's also AMD, and I assume they have a response to Intel's E cores with Zen 5.

[@olaole8315]

I want to upvote, but you have 69 upvotes....

[@newkick100]

Ian Cutress from tech tech potato ( former anandtech ) was also complaining about the caly tech wafer calculator. his work around was to get the page from the way back machine

[@TrueThanny]

Something you didn't cover, which also makes a big difference, is that AMD isn't limited to a single GCD. They didn't do it this generation, probably because it wasn't quite up to expectations, but you can be sure they're working on that. The big question I still have is how the MCD's are connected to the GCD. I don't think it can be Infinity Fabric. The fastest current IF link is 800Gb/s, or 100GB/s. SRAM is more than an order of magnitude faster than that, and a 64-bit GDDR6 link at 2.5GHz is 160GB/s - more than that single IF link. If you increase the number of IF links, you're just adding more and more space to the die, and increasing power usage. So I think the links have to be direct, with no logical communication in place. So the MCD's will effectively be extensions of the GCD. I don't know what that link looks like, but I'm guessing that's what AMD means by "advanced chiplet packaging" in that slide they have describing it. Which does have implications for how much memory throughput they can have. Each MCD needs wide connection point along the edge of the GCD. Which makes multiple GCD's even more important, as you can greatly increase edge area with two rectangular GCD's connected together on their short ends (using a similar "advanced chiplet packaging", I'd wager). Hopefully we'll get some details on the 3rd, but I wouldn't be too surprised if that level of information doesn't get out until the review samples and review guides are distributed.

[@jimmyjiang3413]

While RDNA 3 to be presented, the development of RDNA 4 has already started. I am sure that it will be further improved chiplet packaging, probably more like EPYC Milan package with several GCDs with up to 16 WGPs (32CU) per chiplet, and one physically separate IO die consisting of PCIe, VCN codec, and display output engine, all connected with 4th gen Infinity Architecture. Maybe this would also be the base for chiplet-based APUs, probably suitable for future Nintendo console needs, as well as Radeon Pro series.

[@GrimpakTheMook]

How about doing it kinda like they did with HBM? Interposer connecting under instead sideways? Dunno if SRAM allows for this tho.

[@jimmyjiang3413]

@@GrimpakTheMook it could be using InFO-LSI with 3rd gen Infinity Fabric to link between MCD and GCD.

[@halbouma6720]

Yeah, but they can increase the die too for now as well until its ready.

[@defeqel6537]

Indeed. It might take until RDNA4, but I would wager that we will see multi-GCD RDNA3 next year already.

[@docbogus6128]

Always great to have you back, Jim!

[@CraigieBee]

Oh boy Jim, been waiting for you to peak your interest again. Marvelous video, goes in my list of the great ones. I still go back to your other great ones from time to time. Whether you are right or wrong about this or any of the other topics, it doesn't really matter to me, its that passion and emotional grip I get from your videos that is really exciting. Great job, again! Would be great if AMD levels the playing field though, well at least as far as they got with Intel on the CPU side. Also I'd like a high end graphics card that costs less than a kidney!

[@israellewis5484]

Jim would be amazing as a lecturer in Computer Systems Architecture.

[@apefu]

Beautifully laid out story, Jim! Absolutely loved it. I am really excited to see if they can get 3d-stacking memory working for this. It might save Nvidia for a generation, but the thermals... AMD at least have experience here. The future looks interesting 😎

[@nikmabc]

Nvidia's Intel like moment. To upstage Amd, Intel used a phase change cooler and pushed their old cpu design.

[@mtunayucer]

The thing is lovelace is actually very efficient. Nvidia just pushed it too much

[@MrVohveli]

Not to be that guy, but AMD doesn't have the fastest CPU currently. Also adored unfortunately misses a key point: 40-series maxes out game engines at 1440p. If there's no way up, you need to have a selling point: Ray tracing is exactly that. DLSS containing DLAA and 3.0 are features AMD does not have and FSR has sever image quality defects DLSS simply does not have. The resurrection of cyberpunk and its new path traced mode.. I'm sorry, but AMD is (probably) behind where it counts. You can be sure nVidias r&d department has had chiplets in the works for years. nVidia isn't Intel and you make a severe misjudgement if you think so. AI leveraged performance is the future, as diminishing returns will kick in for shader counts very soon. I hope to be wrong, but as witnessed by intel 13th gen: Unlimited resources do help and nVidia doesn't have the corrupt toxic corporate culture intel does.. so.. my money is on nVidia _maybe_ loosing this gen, but never again. RT will be it, because now AMD fan boys can have it too so a ton of FOMO/Brand blindness will shift to wanting more RT and raster will have reached its limits as nVidia predicted.

[@elon6131]

@@MrVohveli yep. the 4090 is easily >85% faster in pretty much any *pure raster* VR game. 1440p/4k games just don't have the pixel count to utilise these cards right now. AMD's theoretical 2x performance is going to crash and burn in the exact same way it happened to nvidia, there's just no way around the CPU bottleneck and how increasingly wide GPUs just don't have enough pixels to push.

[@amr.c1650]

Commenting just so I can go back and see who got what right.

[@MrVohveli]

​@@amr.c1650 Aside from a few things, I got it exactly as it is: 1.5x in Watch dogs and 1.7x in Cyberpunk still come out to ~10% slower performance. Exactly around where I said it would. Doubled the core count, got 1.5 - 1.7x performance, so there's your diminishing returns kicking in for AMD too. Got that right. AMD pushing FSR with Ray tracing exactly as nVidia does, so got that one too. They came out with hardware support for FSR, which was expected and FSR 3.0 to boot, so didn't get that one quite right thankfully. Not the Intel moment people hoped for, but brilliant stuff for a whole lot less money. Waiting on benchmarks though, as AMD didn't give out any without FSR.

[@InvadersDie]

I saw Ian on his techtechpotato channel using the way back machinenon the internet archive. It let him use the old wafer calculator

[@Think666_]

Thanks for taking the time to pull all of this together and share it with us.

[@Fakeman]

Missed these tech analysis videos! Glad to see these pop up with more frequency.

There is one implication of moving the cache and memory controller off die to chiplets. It will improve binning drastically. With monolithic die, if the shaders came out perfectly, but there was an error in one of the memory controller or cache sections, the otherwise prefect compute had to be binned down to a lower-end model. With chiplets, if such error occurs, it can be replaced with a good chiplet, thus the compute core can be saved. What is even more drastic, if the quality can be tested, they can bin together parts that roughly operate on the same speeds. Meaning, if a memory controller works, but can't reach the same operating frequencies, it can be replaced with one that does. Regarding the reticule limit on 0.55 NA it is around 800, but in case of the newer 0.38NA machines that limit gets halved to 400. Meaning AMD can still manufacture their CPU and GPU, while NVidia and possibly Intel can't if they remain monolithic.

[@MetroidChild]

One thing to note, the main benefit of the smaller reticle is to skip a single mask step on each layer, which is nice if your chip fits the reticle, but nothing game-changing compared to the amount of steps you save by going EUV.

[@kojack57]

That's insane. AMD could become an absolute powerhouse. Imagine trying to keep your ...glee under control for five, six years once you have had the realisation of what at first you can do to the CPU while also knowing that you can carry it over into your GPU company. You gotta love modularity. Nice video as always.

[@ygny1116]

Full AD102 is around 40% faster than Navi 31, talking about being a generation behind.

[@Khang-kw6od]

source?

[@kagaminelen51]

Ah 2017 when any other youtuber reviewer did not believe your analysis, and yet I believed you and turns out you're correct

[@DerIchBinDa]

Oh boy oh boy! Adored video? Stopped everything, grabbed some snacks and here we go! Missed you, Jim!

[@catalystguitarguy]

I’m sure the reason the shift in calling the Graphics Processing UNITS over the formerly more common card moniker is due to them literally attempting to become or becoming absolute Units.

[@klobiforpresident2254]

Nvidia, inventors of the GPU and the GP Unit.

[@jotunheim5302]

@@klobiforpresident2254 Sure, just like how Nvidia "invented" PhysX ...

[@teaser6089]

@@klobiforpresident2254 Ah yes a Nvidia fanboy in the wild... The first GPUs can be credited to PowerVR and 3dfx not Nvidia. Nvidia only was the first by marketing a GPU specifically for gaming, but GPUs are much more then gaming accelerators, if they were just gaming accelerators they would be called Gaming Processor Unit not Graphics Processing Unit...

[@klobiforpresident2254]

@@jotunheim5302 They didn't invent graphics processing and only invented the GPU insofar as they were the first to make up the word (for a term that surely purely by coincidence described their and only their product), which is to say they didn't. My comment was supposed to be humorous, not a factual recounting of graphics computing history.

[@billschauer2240]

@@klobiforpresident2254 For humor smiley face required.

[@enrac]

Hey! New video!! Thanks to your videos I actually work at AMD now!!

[@TestarossaF110]

That's awesome! congrats

[@snozzmcberry2366]

Time to slip the man some leaks, eh

[@OrjonZ]

If Jim gets excited, AMD never fails to disappoint.

[@Lennox032]

Please don't say that! I hope they don't disappoint this time.

[@SoundwaveSinus9]

i dont think Zen4 was a disappointment. Motherboard prices are..... Zen4 3D will be big but AMD will be forced to only produce 3D versions in the future

[@jaroslavzaruba2765]

imagine all the people pulling their hairs for not buying AMD stocks back when he made his first Zen video 😂🤣 yes, that includes me 💥😀😢

[@OrjonZ]

@@Lennox032 4090 is just too fast. Chiplet also have penalty in performance. AMD needs to win with price which should be easy even if they can’t match 4090.

[@ArtisChronicles]

@@SoundwaveSinus9 only 3D cache chips? For workstation? Really?

[@jimmahT]

I hope you are right Jim but I hope it's not at the cost of AMD becoming more greedy than Nvidia currently are.

[@Downstars]

Bro, do you know how capitalism works?

[@Ludak021]

You mean like, AMD being more expensive than Intel now? That kind of greedy? Noo... AMD would never...

[@SoundwaveSinus9]

@@Downstars we dont have real capitalism anymore. Prices go up even if less buy. Normaly price would go down

[@kintustis]

@@SoundwaveSinus9 exactly right. Undersupply? increase prices. Oversupply? slow r&d and production and increase prices. Have a good architecture? increase prices to match performance. Bad architecture? increase prices to widen margins

[@ArtisChronicles]

@@SoundwaveSinus9 yup, been noticing that too.

[@nuclearpcs2139]

SO NO NVIDIA KILLER .... AS USUAL AND RT PERFORMANCE 1 GENERATION BEHIND YIKES

[@WickedRibbon]

The KZbin notification bell was invented so we'd never miss one of this man's videos 🙏

[@exioncore]

Unlisted? 2 views? I just saw your tweet about 15 hours long editing shift today. Video soon. That was 25 minutes ago, you speedy legend!

[@exioncore]

Not sure you meant this to be watchable yet? Is currently listed in your "Latest Tech Upload" playlist

[@Ben-ry1py]

Hell yeah Jim, it's really good to hear from you! I love the zen parallel, they won't spank Nvidia in this gen, but they have room to undercut them to get more market share, and they can use that market share to bring out bricks that will beat the competition in performance and price to performance...then they will raise prices quite a bit, but still be ahead. It almost feels like a fantasy to think that Nvidia could get schooled, but it felt the same with intel before zen. Cheers Ben

[@Abu_Shawarib]

Pretty interesting stuff, regardless of who "wins" this generation, I'm fascinated by the challenges imposed by the divergence of scaling of different components in silicon.

[@JJ20OL]

Love your breakdown videos

[@RobBCactive]

The Cali Tech dpw calculator still works using a web archive, I saw it used. It might have been Chips and Cheese or Angstronomics that has an article using it, if it wasn't Dr Ian Cutress TechTechPotato

[@vorlon123]

Yeah, it was TechTechPotato on the "AMD Ryzen 9 7950X: Cost to Manufacture?"-video, he has it linked in the description.

[@earthtaurus5515]

Think it was Dr Ian Cutress? 🤔

[@Diglo1]

Nvidia has been hitting theoretical limits with die sizes for a while now and it is indeed true that Nvidia can't get that huge increases anymore unless it is a gimmick or a massive discovery with graphics architecture. And yes it is exactly like you said, AMD is no where close to maximum die size with Navi31 which gives them the room to increase their horsepower which Nvidia doesn't have. This is why Nvidia is introducing gimmicks like DLSS 3.0 in order to mask less significant gains. When Intel couldn't keep up with Zen it was obvious that chiplets or MCM was the way to go and it was superior in almost every way, but it would scale with no issues and keep efficiency high, Personally I think RDNA3 will be more efficient and use less power then Lovelace, cost slightly less to manufacture and is likely to out perform Nvidia in rasterization. It is still likely to loose in raytracing, but due to raw horsepower it could be getting very close, but we will just have to wait and see.

[@Ludak021]

Ah yes, I remember when the die couldn't get any bigger than the one in 1080Ti. Good old times, repeating themselves...when internet random people know what's possible better than greatest engineering minds.

[@TheVanillatech]

Saw a really interesting video on DLSS 3.0 on Hardware Unboxed the other day. They showed the "generated" frames when slowing the video down to 5fps etc, and you could clearly see huge artifacting around text (from the GUI) and also very thin objects or ones that didn't move uniformly in the direction the screen action was heading. Admittedly they said that at 120fps or higher, it is hardly noticable when using Quality DLSS, but they said that south of 120fps, and certainly around 60fps (or lower), it is glaringly obvious and ugly. The lower the quality setting of DLSS, the worse it gets. So it seems to be a feature only suited to people with 144Hz (or higher) screens, with GPU's that can achieve those numbers in games. The lower tier 40XX series cards will get nowhere near those numbers of performance unless running very old games, so it will be interesting to see what Nvidia does to try and address this. Especially the GUI factor.

[@BonktYT]

"gimmicks like DLSS 3.0 " Sure, root for AMD, but don't make a fool of yourself

[@VoldoronGaming]

@@BonktYT DLSS is hot garbage. It benefits no one with a refresh lower than 144 or 160 mhz.

[@KibitoAkuya]

@@Ludak021 People were being skeptical because it seemed excessive in size The difference now is that they are literally skirting the reticle limit, it's not "it can't get bigger because it's already ridiculously big", it's "it can't get bigger because it's physically impossible for the fab machines to make anything bigger"

[@chasecrappel9480]

I always thought that if AMD tweeted “Game Over” with their tweet on The day RTX Beyond was held, they would have INSANE hype around them. It fits the gamer theme and if they came out and had a 4090 raster card for like 1k. It would be “game over” and they would win. But that was a dream, hoping for the best.

[@Salabar_]

Being cheeky never worked out for AMD in the past tbh.

[@ShawFujikawa]

That would be cringeworthy marketing if they did that, which probably means they will do it.

[@jayclarke777]

@@Salabar_ "Poor Volta"... Yep

[@AltoXn]

Loving the new content Jim, and your insight into the new technologies

[@eranraz]

i love those videos of pure knowledge. this is why I keep coming back to your channel. please continue releasing them - I enjoy them tremendously!

[@devwadehra9896]

Please keep making more videos and more often. I love the detail, your accent, it's great to have you back making these kinds of videos again! :)

[@billy65bob]

Yay, our Cassandra is back! ❤ EDIT: I'd really like to see some sort of consumer grade SR-IOV solution with graphics chiplets, but I guess that's still a ways away.

[@Xearin]

Great stuff as always Jim. The first obvious split between RDNA and CDNA? Looks promising.

[@tcdnbm]

Really enjoyed this, thanks for putting in all the hard work and doing the research

[@Hitomaru-shiki.sensha]

the little red-orange dragon that could

[@Zorro33313]

When you said "Nvidia's going to get Inteled" i realized that was Lisa's strategy in a finance-restricted environment all along. When everyone where saying "oh, AMD should sell its graphics division cuz it only sucks money from CPU division", Lisa was actually using gained time, money and advantage gap to slow down on CPU side a bit and put more resources into GPU. To intel Nvidia right after she inteled Intel.

[@noahflare6825]

Lisa Su for President!

[@andersjjensen]

The real money isn't in gaming GPUs. The real money is in data center GPUs. Apply everything Jim said about reticle size there first. If AMD goes to an 852mm2 GCD with, say, 32 stacked MCDs they can deliver a 64GB compute accelerator with an effective bandwidth that surpasses HBM2e and is so brutally faster than anything Nvidia could ever dream of that it's not even funny. You can charge $20,000 for such an accelerator without even blinking. Desktop CPUs are a by product of Epyc/Threadripper. And next gen their midrange and high end laptops are going to be based on the standard Zen 4 chiplets. Only ultra-portable laptops get their own dedicated chips. GPUs are heading in a similar direction: Gaming GPUs will get various GCDs, but MCDs will be a by product of compute accelerators.

[@Zorro33313]

@@andersjjensen andres, beratna! mi pensa data center/compute gpus also have little to no scaling problems with GCDs, so AMD can make a 2 GCDs unit and pashang da Novideo nakangepensa still sitting on monolithic dead end. tho mi xalte ere gova Novideo roadmap showing chiplet GPUs right about now so maybe data-center ADA will bring smth but mi nada fosho it's gonna happen.

[@defeqel6537]

@@andersjjensen AMD already has a multi-chip data center design with Instinct, ie. CDNA, they aren't going to use RDNA for it

[@Fractal_32]

@@defeqel6537 well they could carry over this technology to CDNA or maybe we are seeing it backwards and it’s CDNA work put on RDNA. Like how Ryzen and Threadripper are based off EPYC chips. I always found it cool and was curious why Zen had a level of ECC support and gained CCDs well I realized this is because it’s the same chips they put in their server products. (EPYC) Assumingely they chose this due to the economics of binning “defective” dies for lower end platforms. (Threadripper and Ryzen) I could totally be wrong with this CDNA ported to RDNA idea and I’m fine with that. I find the idea interesting because I see the possibility of Ryzen like features/performance scaling overtime.

[@Zorro33313]

ATI's doing powerful efficient and cheap GPUs, while Nvidia's GPUs burn, explode and have useless gimmicks. Like it was yesterday... _Someone once told me "Time is a flat circle"..._ - True Enthusiast

[@Haldjas_]

@@MadLustEnvy raytracing was around for much longer already and nvidia just made special cores to run that, barely, in realtime for the first RTX version. Any card can run some form of raytracing though, and as we have seen with unreal engines lumen technology, you don't need any RTX hardware at all to get to the same level on software raytracing and other engines will ahve to follow suit on those advancements which means the nvidia RT cores will probably lose their meaning in the next 5 years or so EDIT And as far as i am concerned, the new dlss version sucks huge D So what really is there to like about the gimmiks?

[@eleventy-seven]

I love my useless gimmicks.

[@MaddJakd]

@@MadLustEnvy Considering there are normal folk with the card dissing on DLSS3, yeah. You're entire argument is moot. Once you get away from the ignorant, frame chasing, common folk, the nerds on either side are calling the blatant as well as technical pitfalls. Anything else is either blind fanboyism, or literally having no eye nor knowledge of what's in front of them.

[@MaddJakd]

@@MadLustEnvy You know dam well I'm not talking about KZbinrs. Just becasue you don't know real info when it's in front of you doesn't mean you're on to something. Your twisting of my words and reality are quite telling. Your crew of tech illiterates and untrained eyes are why we keep getting hoodwinked by Nvidia. Go find some actual technical dives and even reddit posts and learn something for heavens sake

[@Haldjas_]

@@MadLustEnvy after your little mad rant here, i am fairly certain that you are just trying to troll so I'm not gonna feed you, but if you aren't.. well then you're pretty butthurt about someone not liking your precious nvidia gimmicks i guess Either way, I'm gonna save my time talking to you any further and go somewhere with real conversations where people won't throw a fit for no real reason

[@t3h51d3w1nd3r]

MAN, I absolutely love your videos, listening to your break downs of the current industry situation is always fascinating but the bit at the end makes the the future looks so promising. Superb video!!

[@skaltura]

Amazing analysis as usual! :) Been hoping to see more vids from you :)

[@pvalpha]

Absolutely amazing analysis Jim. I greatly appreciate it and its good to hear you again. I'm more than a bit worried now though - I want competition in the space. I am hoping that Nvidia starts their own migration to MCM architecture to compete. But I also know that if AMD could have done this last generation, we'd have seen it because I know they have been angling for it since Zen launched and proved itself capable. That means that it took a lot of brain-scraping work to get to this - which is a zen1-like structure, and Nvidia undoubtedly is doing some of that... but the question is are they doing enough of it? Nvidia stumbled in the 30 series generation a lot, going to samsung. That was not a design advance, it was a side-step. What we're seeing now from Nvidia is the design we should have seen last generation (IMO as a casual observer). And that means if they have an MCM target... that got sidestepped too, maybe 1-2 generations. And Just like intel... Nvidia is going to get burned by that mistake... which I don't know if its 'hubris' as much as intel or more profit-taking and a lack of clarity. Multi-billion dollar tech firms are not something people should worship like their favorite football team (also, don't worship football teams, or anything else with lots of money behind it really) - what we should be doing is looking at the tech and demanding with our power coupons (money) value for our exchange. I don't think we're going to get something like that available this generation. And if AMD has the lead you think they do, they might price this like competition doesn't exist at all - which would be horrifically depressing. I lament the death of affordable equipment. :(

[@worldtownfc]

Awesome video. The cache wars will be epic. I'm hoping AMD can fix their 1% lows, but the chiplet latency will hurt unless AMD figured out a solution. When you mentioned how AMD is cutting the fat from their architecture, I wonder how much compute performance will be lost?

[@mikehuston2132]

Good to see you back. i look forward to your analysis everytime !!!

[@granthartley]

Wow, so glad someone mentioned this channel in the comments of another video on the day of their launch! That was super informative, interesting and exciting to watch. Thank you for the insight! Subscribed and looking forward to more of this good stuff in the future. 😁👍 Just one more channel to turn me even more into a introverted nerd... and I love it. 😂

[@Saturn2888]

You were right about chiplets and a reduced CU count compared to where they could be. 3-4GHz clocks were a lie though. I'm interested in the full-size package rather than the half-size one we have now. I wanna see a decent 4090 contender.

[@OldManBryan]

Oh man just about to head out for a nightshift and this pops up. What luck something to listen to while I'm out. :D

[@spacecommanderbear]

Thank you buddy great work glad too see you're content back up and still got you're scuba gear on.

[@osgrov]

Superb analysis Jim, I'm very grateful for your insights. Yes, I believe you're correct: this may very well be the Zen moment. It is incredibly exciting! I've ran Nvidia cards ever since the old Radeon 5870 drivers who never really worked made me rage-quit ATI. Now though, it seems the good old team red are back. Very excited to see what RDNA3 brings.

[@Vonklieve]

NVIDIA deserve everything they have coming. The price fixing, the selling to crypto miners on the side etc.

[@starkistuna]

crypto mining was inevitable, also that is what has driven the cards to perform at compute levels in performance the way the 4090 was designed was catering to miners , thank god mining collapsed.

[@MIK33EY]

This is the first use of the square root function that I’ve seen in absolutely ages - usually people divide by two.

[@sickbailey21]

Its always good to see you grace us with another upload brother. Much appreciated.

[@maugre316]

I don''t think Nvidia is in trouble, TBH. AMD could have the faster card and people would still buy Nvidia for DLSS because consumers are that stupid. Plus a lot of compute workloads have locked themselves into CUDA. I'm looking forward to RDNA3 and think they'll perform and sell well, but Nvidia will continue to dominate the GPU market regardless.

[@user-zh9kc7tw4n]

Excellent to see another of your fantastic videos! thank you!

[@Paddzr]

I'm glad you're still uploading!

[@AdamS-nd5hi]

The chiplet are deff a cost cutting feature when you factor it how less often defects will destroy a perfectly good chip ( esp with chips this size) which youre not including on your calculations. overall, very solid analysis as always. temping to break out the hopium. Id eat my own shit to watch nvidia be humbled like intel has been. swish it around with my tounge and between my teeth and everything. MAKE MORE MORE VIDEOS FUNNY ACCENT GUY! - love, fat gun loving American.

[@ntomnia585]

Looking forward to justifying your fetish? 😁

[@Senzorei]

I think it's the yield figure in the second calculator he used, although the old calculator that no longer works definitely did that and they even had a neat visualization for it.

[@tringuyen7519]

Yes, Jim was being overly generous to Nvidia on the die/wafer calculator. There’s no way that the TSMC 4N process is yielding 90% right now. Also Nvidia using the reticle limit on TSMC’s 3nm will be seriously expensive!

[@AdamS-nd5hi]

@@tringuyen7519 nvidia is also likely paying more for their wafers for having jumped ship to samsung for a couple gens. I think generally is better form to be overly generous to those youre making an argument against, but be clear about that

[@kaseyboles30]

IF amd doubles both raster and rt perf then the 4090 winds up between 7800 and 7800xt in raster and just barely(1%-2%) behind the 7900xtx. They however have room for a 4090TI/titan, and then amd likely has some room and/or 3d cache to add in. The real benefit of chiplets isn't primarily cost, but being able to build bigger than the reticule limits.

[@TheXev]

AMD still has room for a 2 GCD ultra behemoth GPU SKU... a flagship that would bury nVidia this generation and any of it's gamer mind share. That is what I want to see if AMD can make it happen this generation.

[@kaseyboles30]

@@TheXev Possibly, I suspect they have work to do to optimize for that configuration, It's not the same degree as sli/crossfire, but it still has some of the issues to be overcome and they may not have fully solved them in rdna3. They almost certainly will by rdn4, and perhaps even for a refresh. Though I'd be very happy to be very wrong on this one. The inter-die latency is what worries me here, it's much more problematic on a gpu than on a multi-core cpu. I strongly suspect they have it good enough for pro-grade cards where it's less about frame times and more about high poly models and total render times.

[@tranquil14738]

@@TheXev they’ve def been tinkering with the idea for a long long time. Vega had infinity fabric support for multi gpu with incredible scaling, just not in games

[@Spikeypup]

All right...how's it going Jim? ;) Nice to see you as always my friend. Glad to see more videos lately... thanks for coming back and giving us that wonderous melodious voice of yours.

[@JuanGarcia-lh1gv]

Great video as always! Things are getting exciting.

[@BakiYuku]

That did not age well...

[@RobBCactive]

Certainly it's going to be fascinating to see how the architecture pans out. Fun if Navi31 Ryzenises Lovelace. The latest power leaks suggest Tom of MLiD reports were accurate and power consumption is in line with the highest end of RDNA2 while efficiency is increased significantly. I suspect there's Infinity Fabric improvements to transfer data fast and efficiently from L2 caches to the MCDs. Chiplet GPUs were always going to require high bandwidth, but the pro dual GCD compute cards don't need the global store which gaming GPUs producing tightly coupled frames.

[@conza1989]

Jim! Thanks for the content as always.

[@D1craigRob]

I just hope this isn't another rx 480 moment. I was so in on that gpu I got hurt a little bit and it made me not trust any speculation I see on KZbin since... Love seeing you back Jim. Keep it up mate.

[@TestarossaF110]

Zen2 moment incoming, wow! I'm so excited!!!!

[@kamachi]

I see a video from Jim, I watch it. Hope you're keeping well pal.

[@kenhopkins1132]

Jim love having you back !!!!!!

[@Wintelburst]

Damn good to hear your voice again Jim! This is most interesting and absolutely welcome insight of the things to come, or speculation about things to come :D So it's after all, make them huge shaderchips and stack them memory modules all around the pie. Bough RX6800 for 1440p gaming and i feel like it's insanely over kill allready. Same time i wonder, if this is at all nessessary for gaming, but at the same time somehow makes me happy for the insanity of the power of these cards.

[@nuclearpcs2139]

every year there is a new nvidia killer and you know what .... IT NEVER HAPPENS LOL

[@nossy232323]

Yeah, it's always "the next RDNA GPU" that will beat Nvidia. And they are also always late.

[@nuclearpcs2139]

@@nossy232323 wow it became true again lol 62 fps on cyberpunk 4k with fsr ...... lol I had that performance years ago with the 3090 XD

[@MarvoloRiddle]

The Hero we need but don't deserve, returns when the world needed him the most.

[@keralius]

Mate, nothing would be different if he hadn’t returned. I love his content but this is an incredibly cringe comment.

[@MarvoloRiddle]

@@keralius you need to calm down and take life more lightly sometimes buddy.

[@keralius]

@@MarvoloRiddle This is also true

[@gabrielhenriquez1700]

We missed you Jim! Good to see you making videos more often again.

[@bella_ciao4608]

Seems very interesting. I’m curious Jim, what do you think is going to happen to GPU and CPU innovation once we hit the physical limitation of node shrinks from quantum tunneling? Isn’t it supposed to be in the area of 3nm?

[@killingtimeitself]

i suspect we'll probably start work to shifting to a completely new base structure. Either that or really funny massive chiplet spam.

[@tranquil14738]

Software will become smarter I think, upscaling tech like dlss is gonna continually get better, and we’ll see some die area sacrificed for better dedicated asic hardware for such, because an insane scaler is better than 11,000 SPs when 10k sps is effectively the same

[@killingtimeitself]

@@tranquil14738 ultimately though hardware will need to march on.

[@bella_ciao4608]

@@killingtimeitself you mean like ditching x86 and moving to arm or risc-v?

[@skirata3144]

Node names are just pure marketing and every single part in a transistor is a lot larger than the node would suggest. We are still a long time away from hitting those physical limitations and ways around it could be switching materials (i.e. gallium nitride or graphene) or entirely switching to another principle (i.e. photonic computing)

[@diegoignacio4923]

Fantastic video Jim! Mark my words, AMD will be going ballistic against Nvidia in pricing. Meaning that AMD will keep same MSRP for 7000 series as the 6000 series at launch. Same strategy as they did with Zen 4 launch, "correcting" prices with no price bumps. Looking foward the november 3 announcement.

[@nate6908]

x to doubt

[@SoundwaveSinus9]

i think the big one will be 1200 dollar not 1000 like 6000 series

[@andersjjensen]

@@SoundwaveSinus9 Yeah, me too. But if it beats the 4090 handily in raster while coming in like a 4080 in ray tracing they'll have it perfectly nailed. Setting the price at parity with their lowest performing feature makes all the rest something you get "for free". That's hard to argue with.

[@diegoignacio4923]

@@SoundwaveSinus9 Probably at most expensive . AMD is on a slightly cheaper node and memory than Nvidia. It's up to them to price it right.

[@SoundwaveSinus9]

@@andersjjensen people still talk about features that AMD has too. I think alot of them are badly informed about AMDs feature pack. AMD should promote it a bit better

[@Tehzii]

So happy to have you back! Thank you

[@TestarossaF110]

I saw your tweets but didn't expect it now, wow thanks!!

[@TheXev]

AMD has been making CDNA2 GPUs using this chiplet process for 1 generation already. AMD is ready for chiplets on the consumer side. nVidia likely won't have any chiplets usable for a few more years. nVidia is in serious trouble, especially if AMD hits hard with a newer video encoder this generation, and they continue to work with major productivity software vendors to improve their software stacks. AMD is starting to fire on all cylinders in the software department, and nVidia needs to be worried.

[@andersjjensen]

CDNA2 accelerators are MCM. I'm fairly certain CDNA3 will be chiplet though.

[@TrueThanny]

Not quite. The MI250 uses two fully GPU's on the same package, making it an MCM design, not a chiplet design. The kinds of workloads that card is designed for don't care about multiple GPU's. It's different with a gaming card, where the software has to see it as a single GPU, because developers don't want to support multiple-GPU functionality since DX12 was released (effectively killing SLI and Crossfire).

[@thecooletompie]

AMD could be limited by the bandwidth of the interconnect this could also explain why doubling the cash doesn't give any noticeable improvement, the interconnect is already full handling the other data. Or it's power limited, moving data off chip certainly cannot be a cheap operation in general it holds that the further the data to travel the more power you spend. If it was shader limited what would've stopped AMD from developing a larger die? Maybe I'm missing something here haven't really thought about it long yet

[@supremeboy]

AMD IS watching power consumption. They have said many many times with CPU's also that they want efficient products as main focus. Thats main reason they cant go crazy with cache size now. First they need to bring out first GCD design and then next one as Jim said will be crazy fast due to changes of size in logic and density gets even higher. AMD could build monster gpu now but that would cost high power consumption that is not their wish.

[@ZuneGuy1118]

Man I saw your two part videos from 2016 and you were off the beam with many of your predictions.

[@phenomanII]

Thank you Jim for these wonderful deep dives on architecture. I hope that ButterDonut makes an appearance one day! I am so glad that there are innovations to look forward to in the future. I remember the launch of Ryzen 5000 extremely well because it was before I finally sought help and medication for my mental health. That Wednesday (bloody timezones) was a very dark one, but I remembered that I planned to watch the unveiling. After watching it, I just *had* to wait for the reviews. And sometimes the most important victories are the smallest ones - just hanging on for another day (or even several weeks).

[@lilyounggamer]

rdna 3 is a game changer with its sli mcm chiplets based they gonna either take the crown or be very very close for alot less money amd gpu like the rx 500 and vega have aged way better than nividia gpus just great value rtx 5000 series needs a completely new redesign too much power burning people's pcs nividia reddit censored people from talking about it

[@TheMaxstpau]

Still rocking a Vega64

[@lilyounggamer]

@@TheMaxstpau how good it it i got a rx 590

[@maydaygoingdown5602]

AMD haven't charged a lot less money for there GPU'S in years and years. They certainly aren't going to start now.

[@corok12]

@@maydaygoingdown5602 seriously, people are acting like they will do anything more than price match. They'll produce for much cheaper, and take a larger profit margin, that's all.

[@SweatyFeetGirl]

@@corok12 they COULD gain a lot of market share if they would price them good. but i believe AMD will be sadly greedy

[@giglioflex]

Typically the larger the cache the higher the latency. AMD's design may incur a latency penalty due to being on a separate chiplet but because each chiplet has a separate cache each should have low latency. In addition, AMD's cache is spread out across the edge of the shader chiplet, which should prevent shaders closer to the edge of the chip from having to fetch data from caches farther away. AMD's design seems to ensure that shaders have the resources needed as close as they can be with an MCM design. In addition, this isn't mentioned in the video but a big advantage of chiplets is bandwidth. The infinity fabric connecting the chiplets could very well provide a major advantage. Even if the latency does end up being higher that could be offset by an increase in bandwidth.

[@TestarossaF110]

Yeah I hope AMD can make it all work way better within their own ecosystem, I wonder how (/if) an X3D v-cached 7000 series cpu, gen5 storage and ddr5 will make the RDNA3 come alive.

[@TrueThanny]

IF is too slow to connect those chiplets. The fastest IF link currently in use is 800Gb/s, which is 100GB/s. That's slower than even the GDDR6 memory connected to each MCD, without even mentioning the SRAM speed of the cache. It would also require having IF controllers on each end, taking up GCD die space and creating power usage that doesn't translate into performance. They have to be doing something different.

[@Salabar_]

GPUs are already designed around high latency memory accesses regardless.

[@danield.7359]

Videos like this are the reason why I watch AdoredTV since 2014! Well explained!

[@TheDidiwolf34]

That 2017 vibe... FeelsGoodMan

[@tomstech4390]

Can't wait for nvidia to say AMD cards are "glued together" and monolithic designs are better. Then 18 months later they'll release GPU's using "tiles" talking about how revolutionary thier new architectures are....

[@AQDuck]

AMD FineGlue technology about to strike again!

[@GuyVanBogart]

Man, I thought you quit 2 years ago with that "You're Being Misled" video. That was so hard to watch as a fan of your videos. Glad to see you're back at it

[@eliotrulez]

As always, nicely done!

[@christophermullins7163]

I think this guy doesn't realize that Nvidia has chiplets all figured out.

[@MrNova39X]

Yeah right, if Nvidia would have chiplets all figured out, you would see it day 1, they are not even close to AMD on that part as it seems.

[@rars0n]

While I agree with your analysis, I can't help but doubt that Nvidia's very talented engineers would be that blindsided by the advantages of chiplets. Surely they have something up their sleeve for future improvements. This isn't the first time Nvidia has maxed out the reticle and left me thinking that there wasn't much room for improvement. Also, while there haven't been any leaks to my knowledge of Nvidia working on actual consumer-bound GPU chiplets, Nvidia is known to have been studying them for years now. They even wrote a paper about it a while back, which I can't find at the moment. A 2019 article quotes Bill Dally as saying that chiplets are "a tool in the toolbox" for Nvidia GPU designers. I doubt it will take Nvidia very long to ramp up its own chiplet design. Once again, they're letting AMD come to market first with the technology so that they can come in behind them and "do it better." None of this really even matters unless AMD can fix their marketing, get their drivers on par with Nvidia, and regain a little mindshare in the eyes of gamers. Delivering products at actual reasonable prices should help a lot, as well. I personally find myself at the point where I can no longer give a crap about PC hardware. I love the technical analysis and how it all comes together, but as for which graphics card gets 10% better FPS in a specific game, I couldn't give a single fuck if my life depended on it. These parts (GPU and CPU) with obnoxious prices that require massive coolers and suck down a thousand watts of power while heating the whole house wouldn't interest me even if I DID care about the 10% performance increase AND had a wad of cash just burning in my pocket. I miss the early 3dfx days, back when hardware was *really* interesting.

[@TrueThanny]

It's a question of whether or not they've been actively developing chiplet-based solutions. It's possible, but one would think we'd have heard something about it by now. It takes years to get that working, and there are an increasing number of patents in the area that they will need to navigate. While I believe AMD would be willing to license their patents to nVidia, I don't think Huang's ego would allow it.

[@tranquil14738]

Intel has very very very very smart people working there and got blindsighted by chiplets because of the management and how comfortable they got. The engineers got to work on a new architecture immediately when zen came out and that’s what we have today with alder lake. Also for the record, drivers have been making huge advances lately, although in my experience they weren’t much better anyways, I have nvddkm crashing all the time on my main rig, and my friend has her gpu doing the same thing. It’s really just marketing efforts that makes people think the drivers are majorly worse, nvidia was leading crashes on vista out of all hardware manufacturers and even Microsoft themselves, while paying people on tech enthusiast forums to tell avid users ATIs drivers are inferior and buggy. Don’t get me wrong AMDs drivers aren’t better than nvidias, they’re just not as behind as the world would leave you to believe, the truth is they’re both pretty buggy because computers have an almost infinite amount of configuration the developers have to compensate for, and there’s edge cases they’ll all miss. Big agree on the lack of interest for products that make your house way hotter for small increases in performance. I use a laptop nowadays because I just can’t be asked to have a 800w space heater in my room during the hot summer, and until I get my monitors upgraded past 1080p it does just fine, but when I upgrade my monitors I’m def gonna build a new pc and try and undervolt it as much as I can

[@rars0n]

@@TrueThanny They HAVE been developing them, just not for consumer GPUs. They've also been researching them for like a decade now. My point it that Nvidia is not coming at this unprepared, and they have more money and talent than any other company, thus they should be fairly capable of pulling it off when necessary. I think the mistake is in thinking that Nvidia have not already planned for this in the pipeline. I don't know what timeline Nvidia works on, but I know back in the RV770 days, it took ATI approximately 4 years to bring a GPU to market. I would expect current Nvidia to possibly work on a tighter schedule than that, just given their size and resources. Nvidia can afford to sit behind AMD for a generation or two. It's happened before, and they always end up coming back with a vengeance. Never mind the scores of fanboys who will never buy an AMD graphics card because it's not made by Nvidia.

[@rars0n]

@@tranquil14738 Intel has a third of the market cap of Nvidia but is a much larger company. They are not a company that is capable of quickly pivoting. There's too much bureaucracy, not to mention they've got their business spread across lots of different fields (eg, Intel has to develop their own fabs in addition to their chips that they manufacture on those fabs). AMD was also at their lowest when Zen was being developed. Intel believed they would remain uncompetitive. AMD has already regained competitiveness with Nvidia. Nvidia is also not as dumb as Intel. It's also no coincidence that certain long-time Intel architects left the company the same year that Zen was released, like Francois Piednoel. Yes, I am saying those "very very very" smart people had their heads up their asses (because they did).

[@tranquil14738]

@@rars0n good points, nvidia being so niche def gives them more flexibility. And they’re def more agile than Intel. Maxwell came out of nowhere to be fair, so did Turing. Maybe you’re right, I really don’t want that to be the case because the only way we’re getting a price war is if nvidia gets shafted for long enough for their artificially generated fanboy mentality to rot away at large and for the general consumer to start judging products on their merits rather than the brand. If nvidia was behind for like 3 generations we’d see a complete rebirth of the 3DFx, Hercules, SGI, ATi, Matrox, etc. days

[@LuffyPirates8]

Amazing analysis as always Jim!!!! I wonder is there any fpga Xilinx tech they can add into Zen5 or RDNA4 to improve their future cpus/gpus even more?

[@andersjjensen]

I think FPGAs in consumer products are still a ways out, but I don't think the thought of some CDNA3 products including FPGA technology is far fetched.

[@johnpaulbacon8320]

Thanks for this very well done and informative video.

[@dark_mode]

What's your thought about AMD's upcoming 7000 series APUs?

[@bella_ciao4608]

I really hope that future APUs will take advantage of this kinda tech and provide a true combo

[@lilyounggamer]

@@bella_ciao4608 Moore's law is dead made a video talking about the apu future and how nividia would try to stop it

[@andersjjensen]

APUs are a budget option. APUs require the fastest memory on the market to perform close to an entry level graphics card. Fast memory is either as, or more expansive than, fast memory. So the verdict is always the same: APUs end up sucking for those who hope for a cheap gaming hero, but are a great option for multimedia creators on a tight budget.

[@dark_mode]

@@lilyounggamer Video link?

[@lilyounggamer]

@@dark_mode kzbin.info/www/bejne/Y52omaZjpK6Kla8 kzbin.info/www/bejne/f5qolHupfb-YmdU

[@Dangerman-zg3ui]

Great video but I'm suprised you've bodly predicted that top RDNA 4 will ahve 30K+ shaders. I mean N3E only has like a 50-60% Density increase? Unless AMD is able to do another big architectural shift that allows to pack more shaders within a given space.

[@johnm2012]

As the video explains, AMD is nowhere close to the maximum reticle size so can increase die size as necessary and fit in many more shaders because the associated infinity cache is off-die.

[@maverickvgc4220]

The next step is clearly putting together multiple GCDs. We had A LOT of rumors talking about a design with 2 GCDs so I think that it was an actual design idea that AMD decided to abandon (maybe it was too inefficient cost-wise) but this probably means that they have the basics ironed out. Considering a 50% density increase they could fit 12K shaders in a 200mm die, put 2 of them together and you're at 25K.

[@TrueThanny]

RDNA 4 can double the number of GCD's. They have a dual-GCD design now, which they're not using for some reason or another. Whatever the issue is, they'll likely have it ironed out for next generation. So doubling the shader count is almost as simple as using two chips instead of one. Assuming there are no special substrate requirements, like there were with the Fury series (the largest interposer on the market limited the die size and the amount of HBM the card could have).

[@jookyuh]

Thanks Jim for the great analysis and insight!

[@toby2581]

Invoking R300 really drove the point home there. If we're seriously talking about a level of dominance comparable to the 9000 series... holy hell.

[@tranquil14738]

I really hope that’s what happens, I was a baby when the 9700 pro was a thing and I’d love to live through an era of competition like that

[@toby2581]

@@tranquil14738 Now I feel old.

[@tranquil14738]

@@toby2581 haha yeah I feel old sometimes too and I’d imagine you’re quite a bit older than I am

[@OfficialNakatsuMegami]

Hey Jim, My Guess to why AMD is not going stacked Cache is due to PCIE lane bandwidth limitations. Now Gen5 is out and Gen 6 is already established and being tested... AMD can unleash the true potential of their architecture. PCIe Gen 7 is already being worked out. That allows for even high bandwidths. I think PCIe Gen 4 is actually holding back AMD on the GPU front, just as it has on the CPU front. Next Gen I believe allows them to stretch their legs and actually allow the performance to flow. Intel will be left far behind as will NVidia.

[@martinschrodt5797]

GPU memory is local, and not connected via PCIE.

[@TheDiner50]

Shit. Do not tell me Gen 5 PCIe is going to matter. I was going with the bet that PCIe Gen4 was going to be more then enough and Gen 5 was really just a waste of time. Well maybe that just means one can just buy a lower tier GPU that maxes out the Gen 4 slot and not really feeling a regret for not going up a tier?? Like just a technical reason to not waste money on the 'best' card :) Like really PCIE gen have not matter very much for soo long.

[@martinschrodt5797]

@@TheDiner50 It is not. PCIE is only used when uploading data to the GPU, and it has been shown that while you loose a bit of performance, it's not much. The rendering process does not use PCIE, and as such they could do 512bit memory interfaces easily, if they so desire.

[@TheFatCarpBaitCo]

I remember you predicting this multi chiplet design on AMD cards ages ago there was a video at that time Corsair reps talking about what nonsense that video was and how it would never happen and yet here we are.

[@nossy232323]

He also predicted amazing performance 😂😂😂

[@zodwraith5745]

To be fair, chiplet GPUs have been talked about for over a decade since SLI/Crossfire started dying off. Engineers knew long ago monolithic had a limited life as dies got bigger and bigger.

[@adoredtv]

Can you show me where in the video I said "amazing performance" for this gen? Pretty sure that never happened.

[@nossy232323]

@@adoredtv Not in this video, in older ones.

[@adoredtv]

@@nossy232323 This is the only video I've done on RDNA 3. Literally haven't even mentioned it in any other video.

[@marcw205]

Wow what a great video. Been following the leakers, reviewers and not learning the economics of chip making. Thankyou. Subscribed