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A Quick DLSS Question

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What does DLSS do exactly? I am playing Shadow of the Tomb Raider at 4K with a 2070S/Ryzen 3700X. Settings on a mixture of high/normal with DLSS off, no AA and RT off. Some areas I get around 45fps but mostly 55-60fps. If do turn on DLSS it shoots to 60fps and rarely dips which is the refresh rate of the 4K tv. Does DLSS adjust all quality settings on the fly? I did read a bit and I thought it was just a AA alternative with less performance impact.
 
Official version.
https://www.nvidia.com/en-gb/geforce/news/nvidia-dlss-your-questions-answered/

Red team version.

It's like smearing Vaseline on your eye balls and lowering your resolution, while giving you a few more frames per second.


Green team version.

It uses magic and wizardry that people of the red persuasion cannot fathom all the while increasing your FPS and making your game look almost like 4k.



Hopefully that helps.
 
lol.

So would I be correct in saying that turning DLSS on does not lower my current 4K resolution on the fly to give me the FPS boost I am seeing?
 
DLSS runs the game at a lower resolution internally. eg. the game is actually running at 1440P; Nvidia then scales it upto 4K using the tensor cores on your GPU and tells you it's 4K(DLSS). You can achieve the same thing by using an in game render scale slider (to about 70%).

The performance gain comes from the game engine not having to render at 4K. Scaling up the smaller image is faster than processing a raw 4k frame buffer.
 
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It's a workaround to make ray-tracing run at playable FPS basically. Once hardware catches up in a few years it will be obsolete.
 
It's a workaround to make ray-tracing run at playable FPS basically. Once hardware catches up in a few years it will be obsolete.

It really isn't, but unfortunately that is certainly how it has been perceived.:(
 
lol.

So would I be correct in saying that turning DLSS on does not lower my current 4K resolution on the fly to give me the FPS boost I am seeing?

Not correct. What they do is they lower resolution & use AI to reconstruct detail back to native resolution. Essentially it's a fancy upscaling technique (even if that description wouldn't be technically correct). In practice it kinda works like applying a beautify (instagram) filter to your lower resolution image, so you get higher performance but lose fine detail. EG:

DLSS VS 4K w/ AA VS 4K + RIS, no AA

03-QHD-zu-4K-NVIDIA-DLSS-2.jpg

09-4K-Nativ-SMAA-4x-2.jpg

10-4K-Nativ-RIS-no-AA-1.jpg

F-2.jpg

F-9.jpg
 
It really isn't, but unfortunately that is certainly how it has been perceived.:(

It is, there is no other reason for running a lower resolution. The whole thing is built to make RTX run at acceptable frame rates, because it won't at native resolutions.

Once we have hardware which can do realtime ray-tracing at 60fps there wont be any need for it.
 
lol.

So would I be correct in saying that turning DLSS on does not lower my current 4K resolution on the fly to give me the FPS boost I am seeing?

Only game supporting it, on pre-backed lower resolution that varies depending the card. on 2080Ti DLSS is better than 2070/S for example. On same resolution and same settings.
 
It is, there is no other reason for running a lower resolution. The whole thing is built to make RTX run at acceptable frame rates, because it won't at native resolutions.

Once we have hardware which can do realtime ray-tracing at 60fps there wont be any need for it.

You can use DLSS without RTX on.
 
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