DLSS ?

[BuzzU]

I read DLSS is for 40 series cards. Will a 3080 card gain nothing from DLSS?

[Esac_mirmidon]

From 20xx included.

[AdrianL]

DLSS 2 will work with any RTX card (20, 30 and 40-series cards). 

DLSS 3 is exclusive to the RTX 40-series.

 

 

 

 

Edited January 27, 2023 by AdrianL

[BuzzU]

Ok, thanks. Is DLSS 2 out now?

[AdrianL]

DLSS 2 was released some time ago. DLSS 3 was released when the 4090 was released.

If you mean in DCS, then no. It has been shown in videos but is still in testing.

[BuzzU]

Ok, I see nothing in the Nvidia settings, so it must be added in a game. DCS doesn't have it yet? Not even DLSS 2?

[AdrianL]

10 minutes ago, BuzzU said:

DCS doesn't have it yet?

It is in testing and not released yet

[BuzzU]

Ok, thanks.

[Voyager]

For reference, DLSS 1.0 and 2.0 render the games at a reduced resolution and then use algorithms to upscale the image back to the display resolution. This is the same as FSR 1.0 and FSR 2.0

DLSS 3.0 instead generates additional purely GPU frames between the engine generated frames. As I understand it, it holds the current frame until the next frame is ready, then generates an interpolated frame between them and displays all three in sequence. Basically you're always a frame behind, but you get double the apparently frame rates. 

Both DLSS implementations are game specific. NVidia, at least used to, take the game in question, do a bunch of chewing on it to generate algorithms that reliably upscale or generate intermediate frames, and that dll is what goes into the game to implement DLSS. I gather they're less dependent on that for DLSS 2.0 now, but I think it's still required for DLSS 3.0 to work right. 

As far as impact on DCS, DLSS 2.0 will increase full frame rate and reduce latency at the potential decrease in fine detail. From what it looks like, the loss has become almost nothing, but we will have to see in game. 

DLSS 2.0 will run on all RTX GPUs. FSR 2.0 should also run on all GPUs, including GTX cards and AMD cards. I believe we're getting both DLSS and FSR 2.0, but could be wrong. 

DLSS 3.0 would effectively double the perceived frame rate smoothness, but at the expense of input latency, and possibly weird HUD things. Apparently it does not play nice with game UI elements, so it could get dicey with aircraft HUD stuff. That's an unknown. 

DLSS 3.0, as far as I know, is not being implemented in DCS. If it was, it would require a 40 series card. 

AMD reports they are working on an FSR 3.0, that may be their counterpart to DLSS 3.0, but at this time we don't know much. 

To recap, DLSS 1.0, 2.0 and FSR 1.0, and 2.0 are Image Upscaling. They work on all RTX cards, and FSR works on everyone else. DLSS 3.0 is Frame Generation and is only supported on RTX 40 cards. AMD currently does not have a competing Frame Gen tech, but may be developing one. Both Image Upscaling and Frame Generation have pros and cons, but they are also different pros and cons. 

Image Upscaling is being tested in DCS, but Frame Generation is not. 

Yes, the naming convention is wildly, absurdly excessively confusing. Sorry for the wall of text. Hopefully this helps. 

[BuzzU]

Very complete post. I'm left with no questions. I'll wait and see if it helps anything. I don't have a fps problem but anything else gained is appreciated.

Thanks.

[Bucic]

I was just about to ask whether there's a risk of ED planning on implementing DLSS 3+ only. Thinking about it, it would be quite a drastic approach. I'm getting RTX 2070 instead GTX 1080.

[Dragon1-1]

There's none. DLSS 3.0 is, essentially, DLSS 2.0 plus frame generation. AFAIK, we're not getting frame generation. So, it makes no sense to lock other cards out.

Edited February 20, 2023 by Dragon1-1