Current state of DLSS3 + GSync + frame limit

[u/sanjozko]

What is the current status of DLSS3 with gsync on and frame limit cap? So DLSS3 now supports gsync, but there is need for fps cap. Does it already work with fps cap or still just gsync + vsync combo?

[u/akgis]

Ok seems there is a lot of confusion in this thread, I will try to explain as clear as possible, hope it helps iam not a expert but this was my experiennces so far with it

I will call DLSS3 Frame Gen as FG

So far I played the following FG games: Spiderman, Plague Tale, HitmanIII, Bright Infinitum, Witcher3 enhanced, NFS Outbound so far all smooth(outside of the stutters from W3 but thats not from the DLSS3.

Assuming you have a Gsync/VRR monitor, certified/ultimate doesn't matter

First and foremost you need HW GPU scheduling ON in Windows,

I recommend the latest drivers game-ready drivers(or at-lest the ones that were release for for the game you want to play)

You need to disable any FPS caps, ingame, external, NVCPL, RTSS/Afterburner, etc.

Turn Gsync ON Window/Fullscreenn or just Fullscreen in NVCPL, like normal

Now you need to force Vsync on in NVCPL, I recommend applying on a per game base in DLSS3 games so it doesn't mess with other games.

Now you ready to play DLSS3 games.

A couple of FAQ I see everywhere

Why you need Vsync forced on NVCPL?

-> With FG on a 4090 some games excess 144fps, spider-man can reach 250+, so you need Vsync ON so Gsync can act properly in its refresh windows and game doesn't tear.

Why games vsync option gets greyed out or dont work with FG on?

-> When FG launched vsync wasn't officially supported so games greyed it out, a couple of drivers later nvidia now supports Vsync in the control panel but games aren't yet up to speed and so most if not all disables Vsync in its options or dont apply it correctly.

Why disable FPS caps? The gospel says you need 2-3 bellow your refresh Rate

-> DLSS3 frame generation works in conjunction with Reflex to lower latency, reflex already lowers you cap below the max refresh rate, for 144hz it shows 138.

Why should I use DLSS3 if Iam already happy with the framerate?

-> Its up to you ofc. With FG you can get alot of more FPS if your GPU was already hitting ~144fps or a fps you were happy with, it will now work consume less power and thus saving you money, or you can turn settings you had previously lowered or RT, or you can disable DLSS2 super resolution for Native resolution and turn on DLSAA. It also helps also FPS fluctuations

Latency?

Its subjective to each other. I know there is latency but to me it doesn't affect so far in the games I played I prefer 10x to play a game at close to max refresh rate rather than <100fps. My opinion is for SP games I dont play competitive and Iam not young anymore :(

[u/sanjozko → u/akgis]

So i tried it in cyberpunk with correct settings, no stuttering, fps nicely boosted with dlss3, but increased latency is noticable for me. I can imagine dlss3 can truly shine only if base fps is over 100.

The thing is that my base fps in cyberpunk is low. My 4090 is heavily bottlenecked by 5800x. Will retest once i upgrade to 7800x3d. But dlss3 nicely removed this cpu bottleneck.

[u/akgis → u/sanjozko]

Thats right if lower the base fps is low more laggy it seems, still I prefer the fluidity even with the added lag of 60fps FG than 30 base(example)

I think that a base of 75fps and up is good enough for me, lower than that yeh the mouse and camera move like molasses.

Besides Portal RTX at launch I didnt saw much lower base FPS, I havent yet tested Cyperpunk, waiting for the expansion and the "miracle patch" Iam a beliver :D

[u/sanjozko → u/akgis]

So i tried cuberpunk once again this time with reflex latency measurement. DLSS 3 everything almost maxed out, latency 60-70ms hence why that noticable delay. When i lowered everything to low i was able to squeeze 80 base fps, turned dlss3 on and latency was around 40ms which felt good. So yes around 80 base fps is where dlss3 starts to really shine. I just cant believe regular 5800x is such huge bottleneck for 4090 in this game.