Analogue Super Nt overview: 16-bit is so hot right now | Super NES Works Gaiden

[@NarutoDattebayo77]

“Don’t ask about the American version, I’m not made of money” same man, same. Subbed.

[@gurgamous]

your production quality and narration are top notch.

[@burk3]

Megaman X2 and X3 use the Cx4 chip (not C4) and it is used for sprite scaling/rotating as well as the wireframe stuff. The developers showed this off the most with the boss of each opening stage. X2 had the multi-story giant robot composed of rotating sphere parts, and X3 has the demon-mask dude with the spike balls for arms.

[@pop2uno]

As always, your videos deliver. Thanks for keeping the content bar so high.

[@InsaneFirebat]

10:33 That was quite loud

[@musicfighter282]

Honestly, now I want a revised Nt with the budget cuts seen on the Super. I’m sure I’m not alone being fine with a plastic case and no analog output.

[@jcchaconjr]

Fast forward a few years, and I can say that the combination of the Super Nt (or Mega Sg) paired with the DAC looks BEAUTIFUL over component on a CRT. I pretty much use them exclusively on my Sony WEGA TV now. It’s what made me use my MiSTer across all cores on the CRT as well when I got that.

[@Rocky32189]

This is definitely the best review of this product on KZbin. Great video!

[@jonmkl]

Apparently the scaler they’re putting out for analog uses a proprietary line of info they’re passing through their HDMI out, rather than scaling the HDMI output, hopefully it turns out to match Nt quality.

[@MaidenHell1977]

Just bought a Super Nt, thanks in massive part to this series. ❤️

[@CookieMonsterJams]

Great review Jeremy thanks! Can't wait for my unit to arrive now

[@RetroTechSelect]

I like the decisions made on this model. It puts it in the same price range as the AVS (which ran a cool $180). For now, I'm sticking with the HD Retrovision component cables. I must admit, though, I'm really tempted by this machine. Top notch review, by the way. You have a new sub.

[@DoctorPoo]

I'm excited to receive my Super NT. Thanks for the great review!

[@JBarrett41]

Still torn on picking one of these up...$40 shipping price is a bit much for a system that looks like it weights less than a pound. Screen looks great though, and love the colors!

[@Stormtrooper1787]

And that shipping price is for ground shipping. The shipping ripoff is the only reason I didn't buy it.

[@bobrocks95]

I had the EXACT same thought. The Super NT could easily fit in a USPS medium flat rate box and ship for under $13. $40 shipping for that little thing is a joke and has genuinely turned me off from it. My hope is that they bumped up the price for pre-orders to make sure they all got out on time, I've seen them mention a shipping partner on Twitter before. Maybe in a couple weeks or a month or so things will have slowed down and they can offer something cheaper.

[@Shendue]

Actually, it's heavier than it seems. The thing weights like a solid brick. The chassis is plastic, but the inner tech is pretty heavy. It's not a SNES Classic Mini. Far heavier.

[@Wuss2ns]

Thanks for the overview Jeremy. Footage looks gorgeous!

[@ezeepeezy]

DAC? Check. Jailbreak? Check. Super NT = Absolutely Essential. Great video, as always!

[@meh6722]

If anyone is reading this now: The DAC (digital to analogue converter) was announced for the analogue systems.

[@russianbot8576]

talking on the anti-epilepsy compromise in yoshi's island, i noticed it, and i appreciate it as an adult who is getting more sensitive to effects like these triggering vertigo. played the snes classic version on my flatmate's and it was a good time, but i can tell that stage would probably give me vertigo on og hardware.

[@nintendo1889x]

12:45 - Lol X seemed pissed, also I'd totally get this is ROM loading was possible (and like the Analog NT, it was added in a later firmware). Or I get a flashcart.

[@MynameisHukos]

I wonder what console they're planning on handling next.

[@bishopwilliams6817]

MynameisHukos Megadrive analog MD

[@BlockABoots]

Hope their able to add an 'overclock' option via FW update to remove slowdown in games such as Super R-type, Super G&G, Contra III etc

[@bishopwilliams6817]

BlockABoots but that's not how the original hardware ran

[@BlockABoots]

Bishop Williams the original hardware didn't have HDMI, run at 1080p or have sprite limit expand option either

[@bishopwilliams6817]

BlockABoots what's that got do to with the game itself. And I run mine at 720p which means its the same pixel ration just upscaled 3 times

[@bishopwilliams6817]

BlockABoots if u want to get rid of slowdown I suggest you stick to emulators

[@BlockABoots]

Its removing the limitations of the original hardware as im sure the developers of the games didnt program them to have slowdown!?, Its preserving their original vision. Its an option if YOU dont want to use such an option YOU dont have to if one was implemented

[@Spazilton1]

The SD2SNES perfectly emulates the CAPCOM CX4.

[@HollowRick]

I was about to say the same thing

[@osirisdeleon]

The DaC (Digital to analog) its on pre-order stage now

[@CarozQH]

The director's cut of Super Turrican?! Man, to a fan of the series like me (I even have Universal Soldier, which is actually the Game boy port of the second game!) that's even more rad than a slightly more polished version of Starfox 2...

[@BainesMkII]

FGPA emulation isn't automatically "perfect" emulation, it is still emulating the (believed proper) behavior of SNES hardware. Byuu (creator of BSNES) has also said that Kevtris (creator of Super NT) failed to publish timing notes, despite making that deal in order to obtain Byuu's help.

[@KuraIthys]

That gets into very particular matters of definition. an FPGA has a massive advantage compared to a software emulator, given that an FPGA more or less is intended to replicate a hardware design at the logic gate level by default, which a software emulator pretty much cannot afford to do. Of course, yes, you still have to know what the actual design and behaviour of the original circuit actually was, as well as implement your copy correctly. But creating an FPGA clone is on a similar level to trying to reproduce the original hardware from newly fabricated ASIC's... (actually given how modern chip design works it's almost identical. If your production volumes justified it, the code that created the FPGA implementation could be handed to a manufacturer and they could hand you a new ASIC implementation of the same design.) And rather unlike trying to get software to mimic the behaviour of a piece of hardware. But of course, yes, it doesn't automatically mean it's correctly implemented. Even official revisions of original hardware sometimes aren't accurate to the original. (see the c64 and the sound chip in later models, the endless parade of crappy and highly variable sound quality of Mega Drive variants, and the quirks of the SNES one-chip design.) When does something go from being an emulator to being a hardware clone? I mean, the definition in use by Byuu essentially states that ANY revision/alteration to a design whatsoever, official or otherwise, is technically an 'emulator', which is kind of absurd...

[@BainesMkII]

@@KuraIthys If you knew the exact logic gate layouts of the chips, then you could duplicate them. From what I understand, that isn't what happened here. Kevtris instead relied on chip documentation, plus the knowledge learned over the years by emulation authors, plus the help of the author of the most accurate SNES emulator, plus new timing research that he performed, to program logic gates that appeared to create identical behavior. Maybe he came up with the same logic gate structures, or maybe he didn't. In that regard, Kevtris did write an emulator. Or you could argue that he made the SNES equivalent of a NES-on-a-chip.

[@ceticobr]

This! FPGA is not magic. Many reviewers seem to have drunk from Analogue's kool aid. There is nothing FPGA has that you could not do in software emulation apart from zero latency. Even that is not inherently impossible in software but only difficult due to how modern platforms work. Software emulation does require exceedingly more CPU power the more accurate you want the timings to be, though.

[@gochem3013]

10:43 I can't find this game footage on KZbin besides you!

[@Weneedaplague]

*splits eardrums* "oh yeah it's ear splitting"

[@fluffychouchou1388]

had to sell off most of my old retro stuff a few years back, but this would probably be the best way if i wanted to get back into it. i dont have the luxury to haul around a lot of stuff, especially the things that only output in standard definition.... cheers as always

[@radracer8889]

Nice review/channel Was the Super GB part really loud, or was that just for me?

[@internisus]

Hopefully they do provide that "jailbreak" firmware like with the Nt Mini. I'm already frothing for a PC Engine core so I can play Rondo of Blood!

[@Doritomurderer]

oh MAN those cd quality JAMS

[@TaxOwlbear]

Excellent review. Thank you.

[@Inv8erZlM]

SuperNT + SD2SNES and you're set. Redguy has added gsu and sa1 support so now you can play games like Yoshi's Island and Kirby's Dreamland 3. There are still games with unsupported special chips like Far East of Eden, but there are only a couple you'd actually want to play and you can always just buy these.

[@Nitroxity]

Wait SA1 support was added? Hell yeah! I know that the ST series of chips isn't going to be supported, but is the SPC7110 at all going to be? The forums on current and planned compatibility aren't too easily-accessible.

[@Inv8erZlM]

@@Nitroxity Check the sd2snes section of the krikzz forum. The posts about gsu and sa1 are pinned at the top.

[@cfilla2]

I believe the SD2SNES does actually simulate the Cx4 chip in the Mega Man games, unless you meant it doesn't do it quite accurately

[@Charlie97L]

It works... whether it's totally accurate is debatable.

[@bishopwilliams6817]

cfilla2 works fine

[@skRapKlan]

12:48 what game is this?

[@PersianImm0rtal]

Analogue made a seperate adapter for RGB analogue output.

[@JeremyParish]

Not yet they haven't.

[@MissAshley42]

I'd never heard of that Shockman thing before. That looks pretty rad!

[@JeremyParish]

It's pretty fun when it's not frying your vintage hardware!

[@dpgreene]

I can't believe you were brave enough to load that cartridge. You weren't worried it was going to fry your pristine Super NT too?

[@KuraIthys]

Euch. I almost bought that... I didn't even think about the fact it could potentially fry hardware...

[@PersianImm0rtal]

Is this the best year for the SNES ever or what?

[@boodro2122]

Still hot, my dude!

[@jedimaster12100]

I liked your indepth review.

[@j0nnyism]

Are they going to release a crt compatible model?

[@JeremyParish]

No, they sell a digital-analog converter (DAC) that works with all their devices. Otherwise their systems would all be priced more along the lines of the Nt Mini.

[@retrosoul8770]

This is a really awesome high quality machine and great video, but when are we gonna get a Genesis/Megadrive counterpart? I love the Snes but the 16-bit era is only half as great without the game experiences you can have on a Genesis as well. Alien Soldier, Shining Force 1&2, ThunderForce & Shinobi series, SOR2, Musha, Beyond Oasis, Gunstar Heroes, Ristar etc these are also some of the best 2d games of all-time, but no one even gives the system a chance to notice...

[@Nitroxity]

I feel like the SNES needed one of these more than the Genesis. With SEGA's 16-bit offering the quality of RGB is pitch perfect, whereas with SNES you either had to choose from horizontal smearing or overblown video levels + hardware inaccuracies, it was a pick your poison situation. With Genesis as long as you get a first edition model or a Genesis 2 with a MegaAmp installed you're all set. If anything I think TurboGraphix deserves the next FPGA console.

[@Shaneus]

I'm a massive SNES noob, what's that Megaman-like platformer boxing/beat-em-up game?

[@internisus]

What would an official digital to analog converter from Analogue offer that something like my Universal H2CS converter doesn't? This is a little box that I bought specifically to be able to take HDMI signals (including Framemeister output) and send them to a television like my Trinitron for its CRT character (playing SNES games on a flat screen seems wrong, even if you can artificially add scanlines). I'd rather get analog output direct from the source too, but, since we can't, isn't one digital to analog converter as good as another?

[@JeremyParish]

Probably nothing, except plug-and-play simplicity, which is always a big selling point for the average consumer.

[@internisus]

Good to know I wouldn't be compromising fidelity with a different solution if they don't release one, then. Thanks!

[@deanlillie7140]

It's an FPGA and as such it doesn't necessarily have to output HDMI signals through the HDMI port. When they talk about creating a "custom" adapter I think it's likely they're talking about something that will only work with the Super Nt. The adapter may just short a couple pins to tell the hardware to output analog signals through the HDMI port.

[@internisus]

I think you might be right, Dean. Analogue's tweet mentioned that such an adapter would work with their "proprietary signal," so it might not just be the same as any standard HDMI converter. Guess we'll just have to wait for more details (if it indeed materializes).

[@Wezleigh]

I had the original version of the Supa Boy. One of the issues it had was with the D-pad of the built in controls in that, it didn't prevent the player from accidentally pressing all four directions at once. This was a pretty mild issue with some games, but some like the Legend of Zelda: a Link to the Past reacted very poorly to this. pressing all four directions would severely corrupt the graphics and completely wipe out the save files.

[@thankyou329]

love it

[@PunchKickBlog]

Still pondering whether to buy the framemeister or not. Is it any helpful with mega drive/genesis, saturn and dreamcast?

[@JeremyParish]

Mega Drive: Absolutely Saturn: Probably, don't have the means to test it yet Dreamcast: Somewhat helpful, but not as dramatic as older systems

[@Shendue]

Isn't a decent VGA adapter better, for a Dreamcast, than an XRGB-Mini?

[@Nitroxity]

HDTVs handle 480i and 480p Component and VGA brilliantly as long as the TV is good in general (I got mine from Vizio, they've always been good at even recognizing and running some oddball out of spec 240p fare), so as long as you have a good VGA box then you're golden with the Dreamcast. Of course, this is just me spouting out info I've heard a bunch of times but have never seen irl since I don't even own a Dreamcast yet :(.

[@KuraIthys]

Can't speak to the framemeister, but I do video capture using an Xcapture-1, which is from the same company. Very expensive, and like most USB video capture devices, sometimes glitchy, but it handles oddball formats like nothing else, and has direct, native support for HDMI, Composite, S-Video, VGA, and a common japanese format. With adapters it supports Component, and RGB scart as well, which pretty much no other capture device in existence will do, realistically. (direct VGA capture is also exceptionally rare.) The video quality is pretty much flawless for most methods, though you do have to watch HDMI content, since USB3 can saturate easily enough, and the device can capture up to 1080p60hz, but if you get the setting wrong you'll get a lot of stutter. (Also the capture program I used to use doesn't play nice with it.) Still, it does a great job at almost anything you can throw at it. So I would assume the framemeister does scaling to a similarly high standard...

[@KuraIthys]

I've been considering getting one of these and modding it to create a portable SNES. That's not to say that those don't exist yet, just that like so many clone systems, the existing ones leave a lot to be desired. That, and I'm vaguely hoping there's an option added to the firmware to allow 128k of VRAM. Not exactly useful for original SNES games, but could be a lot of fun for homebrew development...

[@Strawberry92fs]

Sega Nomad!

[@AirshBornely]

If I would've known about this great piece of hardware, I wouldn't have bothered to get these expensive SNES component cables from HD Retrovision. :/ I'm not quite sure if I wanna stick with what I have or switch to this setup as it offers more features on real hardware.

[@bretthowarth857]

Anyone else annoyed that the power light is not in front power switch vs the rest location ?

[@KuraIthys]

Err no? That's where you'd expect it to be, isn't it? Then again I've always had the PAL console, and on my desk in front of me sit a PAL snes and a super Famicom, bot of which have the power light directly below the reset button. So... this is the 'normal' position for it. I guess what this speaks to is that in spite of the four different colour variations, the styling of this thing is very much a Super Famicom, and not a US version. In fact, even the overall shape and rounded corners are those of the SFC and PAL models... So... Eh. The light position fits with the design.

[@KTJohnsonkidThunder]

Looks like I have to buy me a Analogue Super NT.

[@bozolozo21]

I hope analogue makes a Genesis version.

[@Karnage316]

They are - check out the Mega Sg coming out this year :D

[@Phoenix22Ger]

@@Karnage316 No way? *Rocking home*

[@sunnyforest3239]

Fpga is still emulation. Nice video!

[@JohnSheppard1]

True, but it's much more accurate than software emulation as you're replicating, cycle exact, what the original hardware is doing. It's basically doing exactly what Nintendo did with 1-Chip consoles by consolidating the GPU and the CPU into one chip, so what has been done here with the Super NT is consolidating all the chips into one FPGA chip.

[@desertsoldier41]

Yes...but instead of writing a backend instruction set translation...you are physically, at transistor level replicating the SNES CPU and GPU. It is hardware based and instruction setwise it is an SNES.

[@tinostarks]

5:03 But why would you want analog out on this? That already exists in an original SNES...

[@JeremyParish]

If you have to ask, you'll never understand.

[@1fightdragons]

That's not entirely fair. I used to "never understand", but now I do, and even bought a PVM, and got my consoles modded and fitted with cables for RGB. So, there's even hope for people like me ;)

[@1fightdragons]

tinostarks: Check out retro gaming on a Sony PVM or BVM, and you'll understand. And if you don't, then I agree, you probably never will.

[@mtoad]

Some people like the idea of having one compact box that does both instead of two separate ones.

[@tinostarks]

I owned a PVM before it died, I'm saying why not just connect a real SNES, something that already does analog, something that already does 240p

[@VGColosseum]

Oh man, another thing I need to buy. Stop it Jeremy! ;)

[@ElegyForTheMasses]

I don't understand the Megaman X 3 comment. It doesn't run on my Everdrive, but it does run on my SD2SNES.

[@JeremyParish]

ElegyForTheMasses Yes, well, it’s amazing what can change in the eight months since this video was produced.

[@ElegyForTheMasses]

Ah, I wasn't aware it didn't previously work. Maybe a firmware update fixed it. Sorry about that.

[@NukeOTron]

So... does this mean somebody's going to review the 6 Megabit version of Super Turrican somewhere in the world? ...and how did they even get permission from Factor 5?

[@bishopwilliams6817]

NukeOTron they asked

[@KuraIthys]

@@bishopwilliams6817 hmmh. I guess sometimes it IS that simple. XD I've been trying to build something for SNES that makes it easier to release new homebrew titles and let them use a standard form of extra hardware + much larger ROMS (like an expansion chip, but something more available and more powerful than the originals used. I was thinking something like an Arm cortex M2+), to try and create something of a standardised platform, that I, and others could use. (and hopefully make game releases using that method a lot cheaper too.) Obviously it'd mainly be for homebrew, but it'd be interesting if it could support some re-releases... Then again, since what I'd most like to release are all Square Enix games, I doubt they'd cooperate with that... I'd Particularly be interested in a re-release of the English version of Terranigma, and possibly an official translated release of Seiken Densetsu 3, and if it exists at all, an extended version of Secret of Mana (with an improved translation, since that had to be cut down too due to storage space limits.) since there's stories claiming as much as 40% of the game was removed due to storage limitations. Still, it's extremely unlikely I could get an agreement like that sorted out, so that's mostly just a pipe dream...

[@bishopwilliams6817]

@@KuraIthys well if u have an sd2snes flash cart u can. Terranigma has an English 60hz patch as well as secret of mana 2 aka senksu destsui - my spelling lol there are lots. An sd2snes and romhack.net is all by need my friend

[@bishopwilliams6817]

@@KuraIthys saying that an official translated version on monster world 6 aka wonderboy 6 came out on Wii VC only as it never had an official translation until than. Of course I ripped the game from the wad for my own purposes

[@MartellThaCool]

Great video

[@mtoad]

I'm glad that it doesn't come with a controller.

[@PrinceMarcusWilliam]

I mean considering the price would go up absolutely. Most consumers that would want this already have 3 or more controllers that would work.

[@Kikkoman85]

I was happy to buy the console sans controllers as well, but in the end I broke down and bought a wireless controller and it rocks. Very much worth it, especially if you only have 3 foot-long cable Super Famicom controllers available!

[@inkajoo]

Man the transparent Super Nt that they ended up with looks terrible! You should have put comparison pics in the video to give people a good warning.

[@Nitroxity]

Good thing I ordered mine SFC-styled, then.

[@Phoenix22Ger]

Transparent is for one thing good, you can see, if your cartridge is damaged (or must be cleaned). Other don't have a led for this activity.

[@phunkyjosh]

GATE ARRAY!!! (Henry Winkler Voice)

[@picsl8ed867]

Does the menu allow you to stretch the image to fill an entire modern TV screen? I sometimes like to play like that. I was really upset the SNES classic didn't allow that.

[@JeremyParish]

Yeah, it does.

[@Ragesauce]

Not including a controller was an incredibly stupid move on their part.

[@peteuk111]

Please turn off Scanlines, KZbin's compression makes it look really bad....

[@Real_The_Goof]

I have a real snes and a raspberry pi. I played FF3(6) on both, and seen no difference..yet i'm always seeing arugments (not in your video) that emulation can't stand up to hardware...*shakes my head*

[@rerolledDK]

I don't think FF3 is the best choice for comparing emulators vs hardware. Input lag doesn't even matter at all in that game.

[@bishopwilliams6817]

There's a massive difference in lag. FF 3 is a bad test. Mario world is a good test

[@KuraIthys]

Depends on what you're trying to compare. Also keep in mind emulators have come a long way. BSNES/Higan is in a completely different league to the emulators we had 20 years ago... (but it has resource demands to match.) Really, you have to pick your comparisons very carefully. Some of the biggest emulation problems are in very weird places (and very dependent on what kind of emulator you use.)

[@aidengoodchild]

"Cornier and buttlikier" lol

[@lmeeken]

Slander! As with the Retronauts ep on MegaMan X, you characterize its amazing blazing soundtrack as "butt rock," classing it alongside the likes of Nickleback and Puddle of Mudd. Blasphemy. Clearly, if it's music belongs in any goofy vulgar pop rock category, its "cock rock." All wailing guitars and vamping and shredding.

[@Advocate_plus_one]

We need to stop taking about CRTs. They are an aged and dead tech. Bought two from different sellers and both on their last leg. Unless you can do a comprehensive test before you buy a CRT and build in the price of a recap or beready for a hardware failure. Bottom line is unless you have a great CRT now, it's not worth trying to get one now

[@LeoA2600]

Those fake scanlines look terrible.

[@JeremyParish]

I've yet to see a fake scanline that looks convincing.

[@bodine1231]

Because he's running it at 1080p. At that res they look thin and spaced too far apart,at 720p they look really good.

[@TaxOwlbear]

I'm not convinced. Durign one segment, he showed 4x and 5x scaling, which should make them work, and they still look terrible.

[@bodine1231]

3x is 720p. Its the same as any other scaler like the OSSC or XRGB. ,anything above 3x looks bad. 720p is low enough res where the blur enhances the picture to make it more "crt like" and has the correct width and spacing of the scanlines. The only way they can fix this is by having different scanlines for each resolution,right now its a one size fits all for all these devices.

[@TheTraveller777]

You guys watching at full screen in HD? Probably looks better then. Also were they the hybrid lines or just simple lines? Hybrid on my N64 UltraHDMI looks pretty damn good and not that different to my PVM.

[@Volrath2242]

I find it not having analogue support a non factor at best. Light Gun games are garbage at best and you can always get that snes to hook to your crt

[@JohnSmith-zl8rz]

D-pad even amazon review are not good.

[@Strawberry92fs]

Clone consoles or "classics" that cost more than original hardware just don't interest me. "This faithfully recreates the SNES almost perfectly and costs $200" Yeah, but my actual SNES does it actually perfectly, and I got it for $15 bucks at a thrift store with a copy of super mario world and 2 controllers. So why would I spend 200 bucks on something that's Almost as good as my $15 machine that won't even hook up to my Sony Trinitron retro gaming CRT?

[@HollowRick]

And no input lag

[@SionynJones]

Do you even bother to check that the marketing blerb is correct before you make a video ? See the problem is, its still emulation but with logic blocks instead instead of interpretation with software. Its no different to software write in a scaler program language to a FPGA is programmed in VHDL. That nice product, but heavily over priced. The FPGA which they a big selling point is just off the shelf low power FPGA you can buy mouser or digikey for $33 even less if you order in the 10s.

[@KuraIthys]

That is a REALLY dubious definition of emulation. Do you know how a typical CPU or other IC is designed in general? I'll give you a hint - it's basically a massive VHDL file or some other equivalent definition created in a hardware definition language. In fact, you can take the design file for an ASIC and compile it to run on an FPGA and vice versa, assuming the FPGA is capable enough. Meanwhile, congratulations, you've created a definition of 'emulator' that means ANY hardware revision, official or otherwise, such as say the 1-chip SNES is now an emulator. Well done on making the term meaningless. Byuu is very argumentative, I know, but stretching the definition of emulation to breaking point this way is not helpful to anyone. Also $33 is a lot of money for a single component. The relationship between the price of a final product and it's components is not simply of adding up the parts... Especially for a device that has to be sold for a profit (because it isn't making any money at all indirectly.)

[@ceticobr]

@@KuraIthys It *is* emulation in the sense that Analogue did not implement the console having perfect knowledge of the design of each chip on the SNES. By that I mean they don't know each logic array that sits inside each of the chips of the emulated hardware. Therefore the VHDL they wrote is based off of specifications of how the chips behave. They did not exactly mimick the original hardware, because as of today some of SNES's chips are black boxes. Apart from latency it is similarly accurate as higan. Mister's FPGA neogeo core is closer to the original hardware as much of its implementation is based off of delidded scanned custom chips. They have actually gone through the pains of looking inside the chips in order to mimick how the logic gates actually work. Lastly AFAIK every cpu core of every fpga core is not perfect.