Tech Focus: Nvidia DLDSR - What Does AI Downsampling Actually Do?

[@MrSiloterio]

I can confirm that DLDSR is some sorcery. Currently playing Tomb Raider 2013 using 1.75 resolution and it looks far better than even 5k (1440p 4x). And yes, you don't need any form of anti-aliasing whatsoever. It's madness. But above all, the performance loss is very efficient. Update: just tested this on GTA V and it has finally made MSAA extinct as an AA solution. I've benchmarked the foliage-dense areas which report the lowest possible framerate and found that not only is 1.75x DLDSR able to resolve jagged edges far better than 4x MSAA, but it is even more superior in performance (especially when lots of alpha effects are close to the screen). It's just amazing guys.

[@CalienteQuack]

what smoothness % do you recommend?

[@MrSiloterio]

@@CalienteQuack great question. For me personally I use 10 percent because it strikes the perfect balance between clarity and stability. But don't go beyond 50 percent or else the main purpose of this tech is diminished. The default 33 percent is also okay. You can test this out by loading different static save games and taking screenshots of the different sharpness values.

[@Embreh89]

what is your native resolution ?

[@MrSiloterio]

@@Embreh89 1440p

[@Embreh89]

@@MrSiloterio i also have a 1440p display, for some odd reason i can select 2160p and 1620p in resolutions. what are your dsdlr resolutions ?

[@Mozts1]

I use downsampling all the time to play older games in 4k in a 1080p screen, great to see it hasn't been forgotten about.

[@Olibelus]

So 4k downscaled to 1080p looks better than native 1080p?

[@4riel]

@@Olibelus yes

[@Chrontard]

@@Olibelus no, its not.

[@OGPatriot03]

@@Olibelus Of course, 4k downscaled to a 1080p display is equal to 4x Super Sampling Anti-Aliasing.

[@suly3243]

@@Olibelus yes because sharp lines/edges in video games can flicker and alias so rendering at higher resolution and getting more information from the extra rendered pixels makes the aliasing and flickering less

[@Lukyz69]

I don't know which makes me more excited. Fact that DLDSR is a really good technique or that Alex made a video where 90% of footage is bathtub Geralt. Well played sir :))))

[@ShadowMan64572]

G@y.

[@ShadowMan64572]

@@ForceInEvHorizon This is a video game tech analysis channel, not an lgtbq+ or whatever pandering channel.

[@jonathanchalmers7844]

@@ShadowMan64572 you need a safe space bro?

[@amandadraws8682]

@@jonathanchalmers7844 we are just pointing out hypocrisy. How often Digital Foundry rather preach about "portrayal of women" in their other vids

[@ShadowMan64572]

@@jonathanchalmers7844 ? For what "bro?" =^)

[@jonny-b4954]

Always nice to see further progress on eradication of shimmering and aliasing. Shimmering was most annoying thing of 360-PS3 era. I remember hoping Witcher 3's default AA would handle it when I read it had a temporal component but its minor and subtle

[@caiomarastoni1031]

Exactly what i was thinking... I remember shimmering being really bad on Star Ocean The Last Hope, at least on the ps3. My eyes would hurt so bad that i had to stop playing the game.

[@TheMeccio]

Honestly, i actually think the ps3-360 era was best for antialiasing due to how most rendering methods didn't rely on temporal techniques. Playing at 1080p on many unreal enginge games is a blurry mess nowadays, it used to look pixel sharp as soon as you enabled 2xMSAA

[@TheMeccio]

For example, there are many games with terrible antialiasing today, such as Horizon Zero Dawn and Red Dead 2. Psychonauts 2, FF7R. They're unbearable at 1080p.

[@jonny-b4954]

@@TheMeccio Nah, I mean I get what you're saying. But you're saying aliased, blurry games (not sharp because we're talking sub 720p here) are better than non aliased slightly blurry games with temporal stableness? TAA blur doesn't really bother me. The artifacts it has sometimes with like hair and alpha transparencies is kind of annoying but blur doesn't really bother me. I just settle in to "This is a softer or a sharper game" and forget all about it. Plus, being sharp can look funky in it's own way sometimes. Personally RDR2 AA never bothered me, I think it works well with it's scenery personally, because it's temporally stable (except on transparencies like I mentioned.) I always assumed that was what they had to do to get TAA to work nicely with all the trees and transparencies. More blur. Unfortunate but the game would have shimmered and tore like first RDR without it. No post process would have handled all those trees. Like I mentioned that shit drove me nuts, I would notice that, not the smudging and blurriness. Didn't notice anything with Horizon Zero Dawn personally when played on PS4Pro. But mostly the 360-PS3 era was the post process era. FXAA, SMAA, MLAA, shit, few others I'm forgetting I'm sure. And they were okay, but they also introduced blur. After the first year or so no one used MSAA on the consoles because it just cost too much, 25-30% of your budget for aliasing? Even though Xbox 360 had that special MSAA 2-4x thing it introduced (read the articles about it at release of console, interesting stuff)

[@beardalaxy]

@@TheMeccio I still use forced MSAA pretty often when games have bad AA, but this DLDSRDLS looks really nice.

[@mathesar]

Finally DLDSR explained in detail along with optimal settings for us 1080P users, Thanks once again.

[@DestinoFinalForever]

And in a sexy way.

[@Thishandlemakesnosense]

@@DestinoFinalForever lol lots of bare men's digital chests

[@guywithalltheanswers6942]

The results of DLDSR and DLSS together work much better once the internal res is 1440p or better. The end result is so much better with great framerate too.

[@Ferdam]

I still hope to see a driver-level DLSS implementation/feature in the future, making it not dependent on Developers anymore

[@jonny-b4954]

I'm curious if it's possible. I'd assume there's something, somewhere hindering it. The best we have for now is this. And it works pretty good, looks great. No performance advantage though.

[@iq_thepunisher3767]

have you guys not heard of Nvidia Image Sampling (NIS)? it’s a driver level AA feature just like AMD’s FSR.

[@robosergTV]

@@iq_thepunisher3767 DLSS gives better quality then shitty NIS or FSR. DLSS is an image restoration technique with ML

[@iq_thepunisher3767]

@@robosergTV everyone knows that my friend but till now, that’s all you’re gonna get for a driver-level AA feature without dedicated cores on the gpu (like tensor cores that gives dlss)

[@WinterSnowism]

DLSS needs its AI to learn from graphics sample data provided by developers so it's not suitable for general use like FSR.

[@MichaelChan0308]

The awkward moment my parents stares at me and silently shut the door as I paused the video and zoomed into Geralt's body to compare and contrast the minute technical difference between native and DSR... You planned this huh, Alex?!

[@nathanjohnson5304]

I’ve always wanted to use DLSS for image quality instead of performance and it’s sick that DLDSR let’s us do it in the best way possible. Looks fantastic combined like that.

[@joelhodoborgas]

They also have DLAA which very few games have, its basically DLSS but with no downscaling. More games should have DLAA i dont understand why they doesnt.

[@Undecided_]

It’s really baffling to me that you can use DLSS in conjunction with DLDSR The fact that you can upscale downscale and do everything inbetween with near perfect AA with only 10fps loss is what kid me would have thought as magic Soon we might see DL tech being used to make infinitely scalable graphics

[@DETERMINOLOGY]

Amazing times we in.

[@ishambenafghoul3742]

@@DETERMINOLOGY It's secret sauce like DLDSR + DLSS that's making me stick to PC, despite not having faith in the current market with overpriced GPUs and unoptimized games.

[@superjakegough]

The Nvidia subreddit found that the DLDSR smoothness seems to be acting the same as the image sharpening option in reverse. They found that a DLDSR image with 0% smoothness gave the same sharpening look mentioned on textures in this video as an image at 100% sharpening at the same internal resolution.

[@BlindBison]

Good to know, thanks

[@sirfrancis2220]

So which is the recommended smoothing?

[@BlindBison]

@@sirfrancis2220 in the video Alex said 50% with the new DLDSR looked much more comparable with 4x DSR so probably start there as a baseline I’d wager.

[@BlindBison]

@@seahawkd5203 really wish Nvidia explained this better - I tested 100% smoothness in Overwatch with 2.25x DLDSR and it looked to me as though the UI elements were still be sharpened to hell. Not sure what’s up there. It’s pretty weird they’re still defaulting Smoothness to 33% as that looks way oversharpened in most games. So does Smoothness now work like the opposite of the “Sharpen” slider under the Image Scaling section? What happens if that’s set to a value greater than zero at the same time that Smoothness is set to a value less than 100% does it stack sharpen on sharpen? Seems like this could’ve been laid out and explained better in the settings.

[@BlindBison]

@@seahawkd5203 thanks good to know! Really weird they still default it to 33% and then don’t explain what it does. If DLDSR is enabled with 50% smoothness does that sharpening only kick in when DSR is in use? Or does it always kick in even if you’re playing at native? Thanks,

[@ewerton8463]

this is probably going to be very useful for older games that use archaic forms of anti aliasing

[@fiftyfive1s410]

Definitely! Especially when reshade on some older games like arkham city requires you to turn off MSAA to work properly. DLDSR is allowing me to experience this gem in a whole new light 11 years after the fact.

[@RicochetForce]

@@fiftyfive1s410 The beauty of PC gaming. Your favorites basically improve over time thanks to improving hardware and software.

[@RicochetForce]

Oh, it's excellent. When the choices are FXAA or SMAA, it's a no brainer to use DLDSR. At that point those AA methods are supplementary to the effect DLDSR is having on the output.

[@zombievac]

Or you could watch 3 minutes of the video and NOT have to pose this obvious conclusion!

[@brewski535]

What about Forza Horizon 5. I'm gonna go try it now!

[@Reedg333]

I've been replaying through the MCC and I'm on Halo 4 now. Playing at 1440p Ultrawide with 2.25 DLDSR, making the internal render 5120p. Still getting a locked 144fps and it looks amazing. So happy with this tech to play through older games and be way more crisp.

[@TheCgOrion]

I agree 100%. I'm doing the same thing. To make it really noticeable, I ran my old 360 through my monitor and played for a while first. I'm not sure if the incredible resolution boost or frame rate boost is the best part, but combined it's a completely different experience. The mouse and keyboard is nice too, but that may not be everyone's preference.

[@Reedg333]

@@TheCgOrion Absolutely! Not to be a downer but with how great Halo 4 looks at essentially 5k 144+ fps, it is depressing to me that I struggle to maintain 60fps at 3440x1440 medium settings on Halo Infinite campaign. (RTX 2080) I know Infinite looks better but man idk if it looks like.. 5x better with the performance cost. Lol but regardless, still very happy with DLDSR for old games.

[@vincentjohnson7175]

Does DLDSR use only impact GPU? My GPU is about 20% better than my CPU so I have some headroom I can take advantage of.

[@TheCgOrion]

@@vincentjohnson7175 As far as I can tell, it primarily runs on the Tensor cores, so it's not that different than raising the resolution, as far as the CPU goes. There are some occasions that a resolution increase does impact the CPU, but it's usually something like the LOD being tied to it in some way, and it's not the norm.

[@vincentjohnson7175]

@@TheCgOrion That's what I thought. Thanks, I'll have to try this out

[@SHGames97]

I’ve been waiting for more Tech Focus, you never disappoint mister Alex!

[@manuelfigueiredo8986]

Master* Alex

[@mokurai8233]

@@manuelfigueiredo8986 Meister* Alex

[@existentialselkath1264]

So far the best use I've found for dldsr is to help improve terrible TAA in games like Halo infinite. I use an internal resolution of 1440p which is upscaled to the dldsr resolution of 4k by the in game TAA, and then it's downsampled back to 1440p again by dldsr for my monitor. Its a complete joke that you have to do this to get halo infinite to look crisp, but I'm happy the tool exists that actually allows me to do this in the first place

[@DrMcMoist]

I uninstalled Halo Infinite because I couldn't stand to look at the terrible TAA implementation anymore.

[@existentialselkath1264]

@@DrMcMoist try lowering texture quality a bit and raising the resolution scale instead. If that doesn't work, try using dldsr as I explained in my original comment. The gameplay is great, and the graphics (aside from the lighting) is actually pretty good when the TAA isn't blurring it all away

[@devonmarr9872]

@@existentialselkath1264 this is what I did. 120% low-medium settings

[@automata.]

This is a great idea, the idea is similar to that of combining DLDSR with DLSS, but works on non DLSS games. I'll have to try this with Infinite, thanks!

[@JayUnarmed]

I've been using nvidia's game filters, pretty much like using Reshade, I can get pretty good clarity with it, have to play with it as defaults have too much sharpening. I use it in every game now, GoW, Horizon, RE. The games all look better playing with clarity setting with zero performance hit. TAA is disgusting, looks like the old DLSS where it just smears blur everywhere.

[@77lowebowski]

Red Dead Redemption looks like a totally different game with DLDSR enabled. All the blurriness when moving is eliminated, and looks so amazing!

[@JSpectre98]

what smoothness do you use?

[@arthurbonds-ch]

Great vid! Always nice to see the performance and quality benefits up close. I've personally used DLDSR in Yakuza: Like a Dragon @ 1080p on the 2.25x setting - it really cleans up the flickering/shimmering that's always been my pet peeve with Dragon Engine. Hair both still and in motion look superb and the performance hit is totally acceptable in a game like this.

[@MrSiloterio]

Preach! I'm playing Yakuza 6 and even using super sampling leads to horrible jaggies.

[@mikepawlikguitar]

Provided your GPU hardware is powerful enough, DLDSR is a godsend for 1080p or 1440p users. This is especially the case in instances where DLSS is also available in-game. I swear, 1440p downscaled to your 1080p monitor using DLDSR + DLSS provides a FAR SUPERIOR image to native 1440p with cheap anti-aliasing trickery like TAA, FXAA, MSAA, or other garbage that does little to nothing for jagged edges yet smudges and smears the image all to hell.

[@MrJhon3091]

PREACH BROTHER! It is an absolute godsend DLDSR+DLSS is some kind of sorcery.

[@DaiDidStuff]

I’m so glad you brought up that last tip! I’ve been doing that with Shadow of the Tomb Raider for the past few days and the image quality looks amazing! DLSS is just such a good form of anti-aliasing as is that the higher rez downscale on it is such a massive gain for little performance loss, it’s fantastic 😌

[@imo098765]

This is what I did playing Red Dead 2, the TAA makes the game look blurry DSR plus DLSS made it so much cleaner and sharper

[@EricDFreak]

@@imo098765 gotta try this, because indeed dlss is an amazing AA, but with DSR it must really look god,

[@davidb2885]

It is amazing that we have come to a point where up- and downsampling a picture multiple times makes it look better!

[@dx-qc3ze]

Thanks Alex. As always an excellent video

[@JerryFlowersIII]

I was looking forward to this and very interesting. Especially combining DLSS with DLDSR. I think I've wrapped my head around it.

[@NothingHereForYou]

I forgot all about this being a feature. I upgraded to a 4070 but still like my 1080p monitor. This might help me get some more life out of the monitor, instead of buying a 4K one.

[@erdalguncel9038]

Do you think this feature prevent cpu bottleneck at 1080p with a strong gpu like 4070s ? Thereotically it should

[@adeptalakay]

@@erdalguncel9038yeah i use it to help with cpu bottleneck on my 1080p monitor to play at 1440p and it also looks great, just cant decide what smoothness to use

[@robmann5367]

I also use this in Hunt Showdown, native 1440p, but I reduce the internal resolution slider to 80% or 90% to recoup a good portion of the performance, while still getting a much better image.

[@davidh3608]

Does this creates a better image than 1440p native with the same FPS? I’m playing Halo with 90% resolution scale to maintain 135 fps. It would look better?

[@robmann5367]

@@davidh3608 it might depend on the game. I'm taking a slight performance hit at 90% scale with the 1.78x DLDSR setting. I get most of it back at 80% scale and it still looks better to me. It's worth a shot, I'd say try it out.

[@davidh3608]

@@robmann5367 ok I’ll try it out.

[@tomoprime217]

Overall I worry about the performance hit but I think this DLDSR would greatly reduce the shimmering effect in VR games especially if we can turn off AA to counter balance that performance hit.

[@napalmhardcore]

I personally like to upscale to 8K from 240p, then I downsample to 720p and leave smoothness at 0% so it adds sharpening, then I let my monitor upscale to 1080p and that softens the image like a smoothing filter. The end result looks exactly like native 1080p and the framerate is exactly the same as native 1080p!

[@djentrification1631]

Lmao, this right here.

[@Goodbutevilgenius]

Is this a poke at DF?

[@napalmhardcore]

@@Goodbutevilgenius No. It does actually make sense. It just seems like such a convoluted method when you take a step back that it struck me as funny, so I parodied the comments section to highlight this.

[@Klarden]

Oh heck yeah, Mechanicus soundtrack means that I can't skip a single second of the video

[@Shieftain]

At last, the DLSDR video I was hoping for! About using DLSS in conjunction with DLSDR like you talked about at 14:08... Isn't that basically DLAA that the Elder Scrolls MMO game implemented not too long ago? I'd love to see this supported natively in more games in the future. For me personally, I play most games at 1080p on my 4k TV because I can do 120hz at 1080p but am limited to 60 at 4k, so it'd be nice if I can get an extra clean low-aliased image at 1080p without sacrificing too much performance. I know I'm very likely in the minority here, but I think features like this natively supported would be nice to have nonetheless.

[@JorgeMartinez-dp3im]

I have a TV like yours and I did some crazy stuff with CRU (Custom Resolution Utility). I removed the 4k resolution completely and basically tricked my 4k TV into thinking it was a native 1080p 120hz display. Afterwards I set a DSR factor of 4x to add 4k as an option again to see what it would look like. In case your wondering it did not look good. I was basically trying to get a free 4k 120hz upgrade. Trust me it was not worth the trouble! I will say that i do wish more games had their own built own supersampling though because then you can set your TV to 1080p 120hz and have the game internally render at a higher resolution while still keeping your 120hz refresh. I did this in RE Village and RE3 and it did help with aliasing.

[@Supernova094]

@@JorgeMartinez-dp3im i was doing same with my C1 and RTX 2080. Since it doesn't have hdmi 2.1 i was stuck at 2160p 60hz and 8bit color Now after setting native resolution to 1440p and used DLDSR to 2160p now I got 120hz and 12bit color.. and more performance than what I got using native 2160p. Really happy with DLDSR and I think they'll fine tune it further in their future updates.

@@Supernova094 How did you set the native resolution to 1440p? I would like to achieve the same thing you did, playing in 1440p 120hz on my 4k native TV, with DLDSR doing the downscaling, but right now I only get 1.78x (5461x2880) and 2.25x (6144x3240) as options with it, which are bit too much for my RTX 2080. Not to mention I can only use 60hz with them.

[@Supernova094]

@ use a software called " CRU Custom resolution " and watch a video on KZbin on something on how to use it and you're set.

@@Supernova094 Thanks, will look into it!

[@VladQuake]

I'm glad you did some close up shots in motion because it's hard to portray aliasing due to compression

[@Mazicek]

It would be nice to have smoothness for DLDSR and DSR separately so that I could play some older games in 4.00xDSR with 0% smoothness and some newer games in 2.25 DLDSR with 33% smoothness.

[@TheCgOrion]

I agree 100%. I can't check right now, but they can't be set separately in the game profiles? I normally only use DLDSR, and I used to use DSR, but I haven't tried both.

[@RandomUser-tj3mg]

This might be dumb but isn't it possible to use 4.00xDLDSR

[@mikaelvellmun7228]

@@RandomUser-tj3mg nope only old school legacy scaling is 4x

[@grahamt19781]

Dldsr has made dlss performance mode a viable option in terms of image quality. Loving this new tech.

[@wale9d]

The only time I felt thankful for performance mode!

[@alexxxxxxxx]

I love the idea of super sampling with DLSS and then down sampling that image with DLDSR. A.I has come a long way, at this point it feels like we should just leave the entire render path to those neural networks!

[@richardtucker5938]

Neural radiance fields, had a look at this recently and could be a very important technique in the future for real time rendering. Digital Foundry briefly mentioned them (Alex did on an xmas df direct)

[@damara2268]

Yeah, for example in 2k and 4k resolution current dlss quality setting actually looks better than native in most games. You need to have the updated dlss version tho, but there's a tool that let's you easily update dlss inside your game. I just can't understand how can people keep saying that FSR (which is just a slightly modified Lanczos + sharpening) is a much better technology than dlss and that dlss doesn't have future.

[@richardtucker5938]

@@damara2268 well it doesn't matter, because they are wrong. Further more, people complain about it being locked to NVIDIA, well sure but it needs hardware to speed it up, in future they will be more agnostic versions, but optimized hardware will always run it faster.

[@damara2268]

@@richardtucker5938 it's not "optimized hardware" this is specialized hardware units made for this kind of computations

[@richardtucker5938]

@@damara2268 What i mean by that is that intel will be able to do XESS and have it use a different path (DP4A instructions ) on different hardware, but at a higher cost. So i think saying optimized is appropriate. These instruction could run using a different path, but slower.

[@TheUltimateBlooper]

Been playing with DLDSR and DLSS when I can. I'm a big user of DSR ever since it came out and DL-DSR is just a lovely extension to that now. The temporal aspect is especially useful as it does a great job cleaning up games that have terrible AA, like Prey.

[@ejohn378]

I find even at 4k DLDSR can still really boost image quality. Especially if combined with image scaling techniques.

[@lunchb0ne]

Excellent analysis, I'd also like to add that DLDSR + DLSS makes the image wayy more temporally stable as well, which drastically reduces shimmering as compared to just DLDSR too

[@Superdazzu2]

been playing god of war ultra settings at 1620p with dldsr 2.25 at 60% smoothness and dlss balanced on my rtx 2070 super, it's very crisp and runs great, thanks nvidia. i was litterally saying some weeks ago "god i wish nvidia makes a downsampling technique which involves AI, i can't stand to play at 1080p anymore" and yep, there we go.

[@no_misaki]

Man you're better off driving a 1440p monitor with a GPU that capable. It'll give you way better results than any of this downsampling can achieve anyway.

[@Superdazzu2]

@@no_misaki i know, planning on buying an lg 27gl850 as soon as i can.

[@pietroalessandrini]

Using 2.25x dldsr plus dlss on god of war is giving the most stable (but not blurry!) image I've ever seen on my 1080p monitor for pretty much zero performance loss

[@wile123456]

Alex only benchmarked witcher 3 so he and the audience could stare at naked Geralt for 17 minutes

[@rajackar]

Haha! That was the trippiest DF video I've ever seen. With the music and bathtub overload it feels like more of an art project ;-)

[@dragothica4925]

1080p is a fine baseline but I'd liked to have seen some kind of comparison how it scales with higher resolutions, especially at 1440p output resolution.

[@drewcipher896]

Well, the higher resolution the less you'd need it. You don't even need AA at 2 or 4k, imo.

[@Cblan1224]

@@drewcipher896 that isn't true at all. You can't really make blanket statements about resolution when it really has to do with pixel sizes. Once you get over 75", 4k is not so sharp, and 8k starts to make a difference

[@djentrification1631]

@@drewcipher896 Absolutely untrue, at least to my eyes. Even at 4K, some form of AA is still necessary to stabilize the harsh edges. At 1440p, the effect of not having AA is amplified, and very noticeable. Personally, I will always take the hit to frame rate for nice clean edges.

[@NamTran-xc2ip]

@@djentrification1631 If I use dldsr can should turn off taa in games?

[@woodrowjang]

this is 1000% the content i was hoping for and did not disappoint

[@CaptainPhallus101]

The extended Geralt bath scene right?

[@Shajirr_]

Hair is always a good indicator to check. Without any AA its a flickery nightmare at 1080p or 1440p.

[@ankitlal5931]

I was wondering about this trick you mentioned, what’s stopping us to go for 4x dsr/dldsr, then use dlss on balanced/performance(1080p internal) on a 1080p screen, to get much better image for minimal cost to performance.

[@dahahaka]

thats what people have been doing for ages to get essentially DLAA or DLSS 2x as some people call it, still waiting for nvidia to officially support this with DLSS using a simple setting instead of having to bother with screen resolutions and fullscreen

[@no_misaki]

I did this with Ghostrunner. Ran 4x DSR on my 1080p monitor with DLSS set to performance and it looked freaking phenomenal (I was shocked that it worked at all at the time). The performance hit was like 20-30% less on average than DSR alone I would say.

[@OGPatriot03]

Nothing stops you from doing this, people have done this since DLSS first launched.

[@rahulahl]

Dont think DLDSR comes in 4x.

[@CL-rm6sb]

@@OGPatriot03 Well DLDSR only supports 1.75x and 2.25x right now for some reason. I hope they're not explicitly training things on a hard-coded set of resolution scales because with DSR and custom DSR tool you could do all sorts of cool stuff at whatever scale and aspect ratio you wanted.

[@harshcritick]

Would like to see DLDSR + DLSS on 1440p/4k monitors

[@Justin-ym5ce]

It’s honestly pretty great, I’ve always had 4K until last week when I got the new Dell QD OLED and using dldsr it really does look better then my 4K PG27UQ, I’m really impressed

[@seanjohn7802]

This tech is awesome but since all the examples you used were with a 1080p screen in mind, what should 1440p and 4K users do? My monitor is 1440p and I also have my PC hooked up to my 4K TV. I'm running God of War on my TV at 4K and then DLSS Quality brings it to 1440P. Can I just enable DLDSR 2.25 and be done with it? Thank you.

[@ninhosensei]

I am playing in 8k with no dificult with this, using 4090. It’s amazing.

[@ninhosensei]

You can upscale 1440p to 1800 ou 4k, then uses dldsr to downscale to 1080p or 1440p and play in 4k in your 1440p monitor… LOL

[@pronstorestiffi]

Nice job throwing the Mechanicus soundtrack in there. Probably the best game soundtrack created.

[@Sholvacri]

Great analysis, I've been so waiting for this. I was convinced that DLDSR made games more temporally unstable, because I've been playing a lot of God of War and the game's so sharpened, probably due to DLSS too, that I thought this was the case, but this great analysis shows it's normally the opposite: DLDSR is more stable, and it makes sense that it is, so it is nice to know for sure. It really makes games that have no DLSS, or DLSS 1.X like Monster Hunter World, look quite better, that's for sure. Now, I want a DSR Smoothness setting per game profile, this should be possible, if we just recently got GPU upscaling and sharpness profiles per game, right? :P

[@RicochetForce]

Yeah, per game would be best. I've found some games' internal TAA sharpness really requires turning up the smoothness setting.

[@Sholvacri]

​@@RicochetForce Yeah, the Sharpness level is such a subjective matter, not everyone likes that much or that little sharpness, so we need to adjust this stuff ourselves with external tools, config edit when available or mods. Especially for DLSS, as 2.3 normally already cleans the image quite well, adding just the smallest amount of sharpness looks a bit too much for my taste, which is why I like seeing these options as sliders in games, like in Guardians of The Galaxy.

[@romanlimberger2759]

Btw you can just exchange the dlss 1.x file with another Dlss file of a higher version

[@guspaz]

@@romanlimberger2759 No, you can't. DLSS 1.x and DLSS 2.x are completely different/unrelated/incompatible. You can only exchange DLLs between 2.x versions.

[@CL-rm6sb]

DSR vs DLDSR smoothness values are completely different beasts. DLDSR smoothness is basically post-downsample sharpening. Use 50-75%.

[@andraszoltan2]

Excellent analysis. As I was watching this I realised how powerful these neural net based systems will be in maximising image quality for game streaming; and in creating a new class of gaming devices which use AI to improve streaming quality: Internally render on the server at a high resolution via DLDSR, pumping the downsampled output (lower than output res, but with more raw detail in it) straight down the pipe to the customer device; then, if the client has DLSS capability, their local device can upsample it in a predictable way, giving a better streaming experience for those with the AI-based hardware. Might even be something coming to the Shield platform... And, possibly, the next Switch?

[@spenceranderson4563]

lmao good call bud. They should get on that ;P

[@transtechgirl8786]

Great video Alex, you explained the technology really well and made it easy to follow.

[@LilBoyHexley]

I was actually initially expecting DLDSR to actually be effectively what your DSR+DLSS “trick” was. Using deep learning algorithms to get enhanced super resolution but at a reduced performance cost via AI finagling. Cool to see that DLSS can actually be used in that way to get the effect I was thinking of.

[@MrMokey24]

Smoothing does the opposite for DLDSR, it's a sharpness filter overlay. On DSR however, Smoothing seems to blur the image. Really weird how they implemented it. At 100 percent smoothing DLDSR looks like native while DSR looks like a blurry mess. Maybe they thought that this way, it will be a more obvious difference in comparison screenshots, while the difference is mostly artificial. So if you want to preserve the native presentation, you have to set smoothing to 100 percent for DLDSR and 0 percent for DSR.

[@wolfythesunbro]

Are you actually sure about that? I have been playing with the default 33%, 20, 15 and 10% DLDSR and really can't tell much of a difference. I remember 50% smoothness on Dsr made it a blurry mess, so I haven't experimented with Dldsr. So what do you say it's the best smoothness for a 1080p monitor: 2.25x Dldsr (1620p), and 4x Dsr 4K?

[@MrMokey24]

​@@wolfythesunbro I prefer the native presentation without any filters. So for DLDSR set it to 100 percent and if you want to use DSR you have to set it to 0 percent. Really confusing how they did it.

[@lovac_hunt]

Wow such a detailed comparison! You guys really did an amazing job. I can only imagine the amount of work gone into this. You earned a sub👍🏻

[@notnoodle2196]

I love Mechanicus! Thank you for having it present (if even a little). Also, lots of bath time, thanks 😅

[@WilliamFaucher]

Great explanation! Seems like Depth of Field takes a massive hit though, while the result is more stable, it also becomes substantially less defocused.

[@Extreme96PL]

This is probably due to the game itself. I've noticed this in some games that the higher the resolution, the less strength some effects have. In OG Mass Effect, if you exceed 720p, the bloom and depth of field strength will be lower, in Batman Arkham Knight, if you exceed 1080p, the depth of field strength will be lower. I guess that's because these games weren't designed to run at higher resolutions. OG ME1 was designed to be played at 720p on X360, while Arkham Knight was designed to be played at 1080p on PS4 and Xbox One. Witcher 3 was also designed for PS4 and Xone and to be played in 1080p on top of that if you have more than 30fps in Witcher 3 some physics on things like Geralt hair, jewelry etc. seems to be also less active and more static.

[@plrusek]

what i really like about this technology is finally being able to use NVIDIA's magic deep learning scaling in some capacity on any game that doesn't support it. As opposed to games that support DLSS normally, sure, actually a performance hit and not a performance gain. But the anti aliasing that NVIDIA's DL provides is especially useful for older games that have trash AA methods. GTA 5 comes to mind. I already used 4K DSR on it and being able to save performance with super close looking quality to that is just nothing short of sorcery. I wanna like what AMD's doing but it's NVIDIA that is really innovating in this space.

[@sammyfromdulvey2511]

I think an acronym and common term definition video would be helpful because i feel stupid that i don't know what flickering means.. i feel that many people find the visuals interesting but might get intimidated as i did when i don't have an understanding of common terms that are used in many of the videos that i watch here. Not dldsr in particular but terms like anti aliasing i don't know. I'm a console player i so many of the terms I'm not familiar with but i do find the content interesting, it just sucks when i feel like i have to look up on my own all kind of different terms its quite daunting, pausing over and over throughout watching a typical vid here. Love the work yall do here guys keep it up!

[@JDelwynn]

You don't need to know anything about graphics to understand what flickering means if you know english...

[@CJvzla]

You'd think that after what feels like 25 years of benchmarking The Witcher 3, DF would have a save file farther ahead in the story with some more interesting cutscenes, lol xD

[@minerkey682]

But this is an interesting cutscene

[@FayezButts]

No spoilers!

[@CJvzla]

@@FayezButts I get it, there's plenty of scenes ahead that don't spoil much, it's just people talking, besides there no audio 😂

[@timmyp6297]

First thing I said was it looks like OG\SG SSAA. 5 seconds into using it. Totally blown away.

[@paperclip9558]

Is this still a solid option for newer games? Like recently im playing indiana jones great circle and in 1080p it looks, just okay? My problem is the texture seems like a ps4 era texture in 1080p even on high settings, too smooth, too clean, so i wonder if this option can do something to remedy that.

[@paperclip9558]

Nvm, just tried this out and its freakin awesome. Image quality looks so much better now. Well looks like I'm throwing the plan to upgrade my monitor out to the window 😂

[@mattc7420]

I'm playing on Ultra and the frame rate never dipped below 120. This software is a miracle!

[@masterquake7]

Big fan of Alex's tech breakdowns. Another good one here.

[@carstenschultz5]

So we have DLSS ultra quality now, with render resolution equal to output resolution, and you get it by setting DLSS quality + DLDSR. Slight joking aside, it seems that a dedicated setting for this instead of a hack could be more efficient.

[@guspaz]

nVidia reserved just such a setting in the gsync documentation, and then announced DLAA (which is is DLSS rendering at native resolution and then using temporal upsampling for antialiasing), but AFAIK only one game has implemented DLAA so far.

[@Markie98]

@@guspaz DLAA has only been featured in Elder Scrolls Online so far and is quite disappointing. It seems to be blurrier than just native with TAA, somehow. It is not like DSR + DLSS (which is what it should be) at all.

[@mizurazu2500]

This is a godsent for games like NieR: Automata and Replicant. Both games look so shimmery and the only good way to smooth it out was 4k DSR. Now with this, the game looks smooth even at the lower res. I did put the smoothness filter to 100% since it seems to have the opposite affect that it has on plain DSR resolutions. I hated that oversharpened on 0 smoothness. I normally have 0 smoothness set because I mainly used the 4k DSR res which didn't need the filter

[@Goodbutevilgenius]

Yep, works wonders for the grass and trees in Automata

[@mizurazu2500]

@@Goodbutevilgenius So I never had the Fidelity CAS on since it's usually an AMD thing and it made the game look over sharpened at 1080p. But having it turned on and the level set to the lowest makes the game pop and removes the slight blur added that comes with DLDSR and SMAA(I still have it on for extra help with AA on foliage). If you haven't already, give that a shot too.

[@Goodbutevilgenius]

@@mizurazu2500 I honestly haven't noticed any blur (DLDSR 2.25, smoothness 100). What's your DLDSR level?

[@dailydoseofeverything7141]

You should try it with GTA 4, its a game that has no AA at all and would greatly benefit. Maybe this could finally give GTA 4 good image quality?

[@nightdriver7216]

DSR at 1440p already gives GTAIV good image quality. Unfortunately, the game runs very badly on fast PCs. It's simply a bad port. But it does look very nice.

[@dailydoseofeverything7141]

@@nightdriver7216 I run at 4k DSR and there is extremely bad flickering on a lot of things (eg. fences)

[@richardwilliams877]

So glad to see you talk about this! Recently played through Death's Door and DLDSR worked really well! Really looking forward to messing around with it more in the future. Hope they offer higher resolutions soon!!

[@jere3651]

Does this mean that i can use DLDSR+DLSSperformance at my native 4k res and the quality will be better than native 4k?? So downsampling from 8k to 4k render resolution with DLDSR 2.25x but implementing DLSS in performance mode. SO DLDSR 2.25x@4kNative=8k res+DLSS Performance mod makes an actual output resolution of 3840x2160(4k) which is my native res. DOes this makes a better quality image than my native 4k even though it is still rendering at 4k?

[@xephyrxero]

You would want DLDSR at 4x to get an 8K intermediary resolution

[@jere3651]

Oh yeah. I meant 5k ish.. my bad

[@executable3]

I tried out Horizon at 4K with DLSS Quality and DLDSR 2.25x and the image was crazy stable with less blur than TAA, I was amazed. Although tbh I found AC Syndicate had minimal improvement with DLDSR. I wish you guys had called out that nVidia image that pretty much stated that 1080p native had the same performance as 2.25x DLDSR. It took me over an hour to figure it out because I thought I was doing something wrong when my performance was lowering. Frankly I thought that DLDSR was doing the same thing as DLSS 2x only at a driver level.

[@jayros]

Could you now talk about the new "NVIDIA Image Scaling" implemented recently in the latest drivers? How to use it? What GPU do you need? Apparently, is for almost “any” Nvidia GPU, but I don't see many people talking about it.

[@wiegraf9009]

It's comparable to FSR, definitely not amazing but can be nice if you're trying to shoot for a high frame rate and the game doesn't support DLSS.

[@kajurn791]

Nvidia image scaling is just a way to improve performance by lowering render resolution while adding some aliasing to make it look like you didn't lose a lot of image quality. The problem with it is Nvidia's aliasing implementation that is a bit too oversharpened for a lot of people, so some tweaking is needed. But it works alright if you have a high resolution monitor that your GPU can't drive well enough. It has a few limitations like for example it doesn't work with HDR on Pascal and older GPUs and apparently the upscaling algorithm that Nvidia uses on turing and older GPUs is inferior compared to the upscaling that some high end monitors and newer AMD GPU's have. You can also do something similar with Reshade although it's not going to be viable for multiplayer games. Really depends on your setup and the games you play whether it's worth using or not YMMV.

[@RaaynML]

They made a video talking about it and comparing it to FSR, it's definitely inferior to FSR especially when considering that it scales the UI as well, but its advantage is that it works on all games, at least until Radeon releases their driver-level FSR. Hopefully they re-compare all of these scaling techniques when that happens

[@jayros]

@@RaaynML I've been trying to find that video without success. What's the name of the video?

[@Christian-fj9qj]

An entire video based around the Geralt bathtub scene - well played Alex, well played :D

[@andreashofbauer2790]

Are there some advices for the smoothing setting in DLDSR? Default is 33% What about smoothness at an upscaled 4k Image by 2.25 or by 1.75? Same with 1440p and 1080p? Thx for your advice and smoothness settings reccomendation!

[@Goodbutevilgenius]

Just set it to 100 to avoid artificial sharpening.

[@andreashofbauer2790]

@@Goodbutevilgenius Always to 100 No Matter if upscaled from 4k or 1440p?

[@Goodbutevilgenius]

@@andreashofbauer2790 You might want to decrease it a bit on the lower resolutions, like to 66%, but personally I always use 100.

Outstanding video. Comprehensive, concise, and beautifully explains DSR and DLDSR.

[@Lorenzzomariano]

DLDSR + dlss = perfect

[@flowerthencrranger3854]

I remember 7 year old me thinking that shimmering was one of the most annoying things in games back in the 7th and early 8th, really nice to see how it is today

[@hydratic7509]

Using AI to upscale then downscale a realtime image sounds like how Skynet is born

[@m3gAnac0nda]

Uuh no, You're wrong and not funny.

[@cikame]

Unfortunately we jumped the gun on using the term AI in favour of marketing, non of this is intelligent, it's just forming an algorithm using a lot of data.

[@kosmik5573]

Thank you DF, been waiting for this video. The Mechanicus OST in the background is the cherry on top.

[@iandonnelly959]

I would like to see a driver option like DLDSR which works more like performance DLSS. As in, I can render in lower res but use the ML filter to get better looking image upscaled to native res. Essentially a 0.75 and 0.5 option or something like that

[@StatusQuo209]

Yeah. It should be possible for them to implement this since they can do GPU scaling. Just select an input and output res and this it should work on any game.

[@glenwaldrop8166]

I use the old school DSR quite often on my primary gaming machine, backup gaming and my secondary laptop. On all three the smoothness factor seems to be more dependent on the monitor than anything else, though I found the sweet spot to be between 40% and 60%. I tune DSR by using that resolution on my desktop and opening text files, context menus, etc, and adjusting the smoothness factor until the text looks correct. Some resolutions will look better than others but generally you can get it close enough that one smoothness factor works across all of them.

[@BanjoKazooie0]

Finally as someone who uses a CRT Monitor this is what I wanted from Nvidia DLS!!!

[@uzairansari9222]

Meanwhile me with a 1050ti watching videos showcasing RTX features with a single tear rolling down my left cheek.

[@starmanhov]

The machines are learning too fast. Skynet is nearly complete.

[@Vamavid]

I think DF should develop a tool that scores frames. A frame is compared to something like a 16× supersampled "ground truth" frame. The tool can then analyze thousands of frames and then give an up/downscale technique an objective score.

[@alexanderbattaglia6048]

👀

[@Vamavid]

@@alexanderbattaglia6048 Wow, you _do_ read the comments!

[@LISTEDGames]

I really wonder how DLDSR 2.25x compares vs 1440p native

[@oneandonlyjark]

DSR is old enough by now, with many of its users generally aware of its drawbacks, so it's about time that we get to see its natural successor (DLDSR). I'm certainly looking forward to it (I don't currently know how to activate it, and I'm running all the latest drivers and patches). The funny thing is, I could never get even 2.00x 1080p DSR to work well (which is roughly 2715x1527 it's like a super 1440p basically). I tried changing the curve smoothness percentage, where lowering produces sharper image w/ more aliasing and raising the % produces smoother image w/ more blurriness, and could never get a satisfactory result. Furthermore, 4.00x 1080p DSR (4K or UHD basically) produced the right look, but incurred too much strain on my computer. I now have a 3070 Ti + Ryzen 7 5800x setup, but on NEW games it is for smooth 1440p 60+ fps ranges, for high GPU & low CPU utilization % at 200+ W power draw. 4K will bump everything up by 10-20% and power draw to max, and that's w/o using DSR (downsampling is extra work for the computer when compared to native). TBH, given that I have a 1080p60 screen anyway, I'd rather just be using Nvidia's GeForce Experience filters (whatever they're called). I can get crisper images (at the risk of a "grainy" look) using the texture & overall image sharpeners at 1080p. With the right tweaks per game, you can kinda make textures "pop," which is part of what the goal is for QHD and UHD resolutions anyway. "Pop" is what it'll look like for the first time when you see the ultra-smoothness of 3D shapes and sharpness of flat textures at those higher-than-FHD resolutions (EDIT: no, I'm not talking about Alex's use of "pop" pixels or edges at 11:00. Just sharper textures - more detail - and crisper SMOOTHED edges).

[@92juanreus]

You mentioned DLDSR 2.25x was not better but almost as good as DSR 4x (contrary to the Nvidia image) but with some caviats, but you forgot to mention the boost in performance of going 2.25x over 4x, so the little degrade in image quality is kind of compensated. Nice video and nice tool Nvidia is giving us!

[@KarimTemple]

You mean he didn't reiterate it. He framed that entire section within the context of DLDSR 2.25x having higher fps than DSR 4x. With that given, he dives into Nvidia's claim about DLDSR matching DSR 4x PQ.

[@SteamPunk96]

the Hermann grid illusion at around 4:40 was really messing with me

[@Paulie8K]

Awesome. I've been using this for about a week now on 1440P monitor with a 3080FE. I use it to down sample from 4K as there is a ton of performance overhead in a lot of the games I play at 1440P. The image quality does look noticeably better in most of the games I tested. I do get a performance hit but since the 3080 is actually a 4K native card, I'm still at least 60 fps in most cases.

[@Paulie8K]

Also, I have a 3080 Alienware laptop that has a 1080P display. I have tried playing with the DLDSR at 2.25 on the 1080P laptop and I'd say that the imagine looks practically as good as my native 1440P monitor. Long story short, use this feature if you have a system that is powerful, and you want to play at a resolution that is higher than your native display. Best of all, the performance hit only seems to be half of what it'd be if you actually went up to the higher resolution natively.

[@SonGoku544]

so you use 2.25x then right? which smoothness % you use?

[@rebelblade7159]

One of benefits I found with DLDSR is how it also manages to properly scale UI elements and menus in games. Using DSR, they seem to become more blurry.

[@BlindBison]

Great work, would love to see that proposed video on Unreal Engine PC stutter down the line!

[@megamanx1291]

dying to see this video

[@wiegraf9009]

DLDSR is the real deal in FFXIV, which has been lacking a decent AA solution for a very long time. The image quality improvement with it on is very significant!

[@NexGenTek]

I'll have to take a look. The hair always flickered I'm curious on how big the improvement is

[@repker]

imo skin still looks over sharpened with dldsr even at 33% smoothness

[@ragnatoa]

Idk if this is a dumb question, but what would look better? 1080p with 1440 downscaled to 1080, or native 1440? I'm mainly wondering because of how the deep learning deals with aliasing. I'vewanted to see if there were a way to upscale using NIS from a DLDSR 1080p or any other resolution to my 4k monitor.

[@richardtucker5938]

Hey Alex, i have been using this a bit this week with 33% smoothing, but only really quick test, would you recommended using 50% or any other value?

[@JorgeMartinez-dp3im]

I hope you get a reply but I think it'll be down to preference. It looks pretty bad at 0% and not bad at the default of 33% but I still think it's too sharp. 50% or above is what I think will look best but I need to experiment with it more.

[@richardtucker5938]

@@JorgeMartinez-dp3im Yeah i agree with you it must be case by case, i am trying 50% for a bit

[@MLWJ1993]

@@richardtucker5938 I stick with 50% as well, had some games that had sharpening artefacts at 33% which manifested itself as contrasty bright lines causing flickering (do note that those games have no/terrible AA options). First thought DLDSR just sucked until I went with 50% smoothness.

[@kendokaaa]

I've been liking 50% on a 1440P monitor

[@hhhfdsfs]

50 is the most balanced imo

[@agoogleuser2369]

I have been using DSR ever since it came out on 1080p TVs and 1080p monitors with my old GTX 770. Never felt the need to buy higher pixel density TV or monitor for gaming alone because of this nifty tool. Of course, almost a decade later with an RTX 3090 I have been playing games on a 4K 60 TV. I always preferred a sharper image by setting highest possible 4X resolution while maintaining at least 60fps with smoothness set to 15%. It's always worked out for me in most games.

[@m3gAnac0nda]

Playing on tv... Go buy a console

[@vinsta76]

@@m3gAnac0nda ? They'll still get lower input lag, better looking graphics. mods, cheaper games, free online play etc etc with PC so why downgrade to console?

[@IBRAHIM_GGZ]

with all my respect why that scene from witcher ?

[@msonisama8656]

such a great video with clear explainations and already answers questions before we had them, thanks.

[@cosmindinaa]

I love how these Nvidia educational videos have become the same thing as watching a documentary about dinosaurs, since no one in their right mind can afford to get a GPU. At least I can imagine how having one might be. Thanks, Nvidia.

[@MrFlashAccount]

I think blaming nvidia is not a good idea, since it produces even more video cards than a 2 years before and we have same difficulties with buying consoles, though it’s not possible to mine on them.

[@Taijifufu]

Turing released in 2018. People who got in early got their money's worth.

[@moonknightish]

@@MrFlashAccount The problem is not availability, but pricing

[@ionseven]

More like fun, informative ads. White papers are educational, but no one likes reading anymore. Cant become even an amateur paleontologist watching National Geographic. Words conceal actual data.

[@MrFlashAccount]

@@moonknightish what pricing? Not nvidia selling videocards with 2-3 times higher price.

[@Lolle9999]

now id just love if we could enable the temporal antialiasing effect without scaling, aka if a game has bad aa such as fxaa we could use the drivers better version

[@MLWJ1993]

DLXAA incoming! 😆 (Driver FXAA using ML filtering).

[@joeynessily]

The last bit of using DLSSDLDSR broke my brain…..what is happen? .. I feel I need a graphic or something..so does this give better performance across the board? .. be cool if you can test this with other games.

[@Murphy46]

it gives 4k internal, 1440p performance, 1080p output, but with 4k improvements. If you want 4k improvements to 1080p downscaling need power to move 4k native.

[@RicochetForce]

Basically Alex is exploiting the properties of DLSS and DLDSR. Example: You have a 1080p display. DLDSR - DLDSR 2.25x renders the game at 2.25x 1080p, rendering far more detail in-game. The Deep Learning aspect then performs the supersampling step to produce an image with detail comparable to a 4K resolution render. DLSS Quality - DLSS renders the game at 60% of 1080p, getting you more performance. The Deep Learning aspect preserves more detail and image quality than native 1080p. This means the DLSS Quality is using 60% the 2.25x resolution image of DLDSR. As you can see in the video, it has way more detail than native 1080p.

[@lyconxero457]

The fact that you can use both DLSS and DLDSR at the same time is kinda blowing my mind. As an avid Nintendo fan, it is my fervent hope and desire that their next generation hardware is able to utilize all of these tricks of the Nvidia trade to achieve both great visuals and performance.

[@sapphyrus]

That gave me a chuckle. Your best bet would be emulating when it comes to Nintendo. Any hardware power they have, they will happily squander on a gimmick they’ll dump later. See dual screen and 3D. They actually went 3D and lowered the resolution to near half!

[@Aviiven]

So no tests of nvidia's claims saying dldsr improves performance over normal dsr? At a point in the video it seemed as if you were gonna present this topic but then you continued comparing dsr settings and nothing about the dldsr performance only dlss + dsr

[@MorriganJade]

The conclusion you can get from this video is that you don't need to run at higher resolutions to get a sharper image. You can then run the game at 2.25X instead of 4X on a 1080P monitor, and it'll look as good, if not better, while the performance hit is not as drastic. You don't need to prove their claim. The only claim that needs to be proven is that the image quality is as sharp or sharper than higher DSR outputs at higher resolutions (say 2.50x and above, since 2.25X is the max for DLDSR)

[@Superdazzu2]

it doesn't improve performance, alex DID say that dldsr costs more than dsr (about 5% or less, i don't remember)

[@MorriganJade]

@@Superdazzu2 Yes, but what Nvidia claims is that 2.25x looks better than 4x, and that, because it only runs at 2.25x the resolution instead of 4x, it'll "increase performance".

[@guspaz]

@@MorriganJade And it does that too. On a 1440p display, 4X DSR is not practical in most games because rendering at 5120x2880 is just too demanding, but DLDSR rendering at only 3840x2160 is much more practical. And in some games, even the 1.78x DLDSR setting is enough to solve their aliasing issues.

[@Keivz]

I find it fascinating that a game can render internally at 940p (dlss balanced + dldsr 2.25) and still run worse than native 1080p while apparently looking better.