S.T.A.L.K.E.R. 2: Heart of Chornobyl

S.T.A.L.K.E.R. 2: Heart of Chornobyl

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Updated frame generation model with today’s driver fixes memory leak?
Stalker 2 supports the updated frame generation model that released today with the NVIDIA app and drivers. You can use it with regular frame generation on a 40 series card within DLSS override settings. I hope it fixes the performance degradation from the in game frame generation that drops the game to 30 fps after a few hours and has never been fixed by any patch and they have never seem to have acknowledged the issue but it’s what has kept me from playing the game and enjoying so maybe some testing is in order.
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Showing 1-10 of 10 comments
Oh nice, that is very good news, hope your game stays stable after many hours.
Nite69 Jan 30 @ 9:18pm 
the memory leak was fixed in 1.1.4
The memory leaks are not all fixed and a memory leak has nothing to do with drivers.
When an Integer isnt closed properly you might get a memory leak.
Dumar Jan 30 @ 9:43pm 
Memory leak is not resolved for DLSS3 Framegen on 1.1.4.

I don't think Nvidia' driver update addressed it, nothing in notes.

Also, Stalker 2, big patch coming in February.

Secondly, manually updating with DLSS4 with DLL's from Cyberpunk, using Upscaler DLSS4 and Framegen4 (before nvidia's driver patch,) also didn't resolve Stalker 2 framegen issue.

Therefore, while I'm updating my driver now, i have ZERO faith anything will be fixed UNTIL GSC releases their BIG patch in February.


(I'll update this thread once I have an hour to 3 test DLSS4 driver-update, framegen DLSS4 forced, memleak.)
Last edited by Dumar; Jan 30 @ 9:45pm
Dumar Jan 31 @ 9:09am 
I have an update - I forced DLSS4 via nvidia App.

TL:DR - I believe new driver + Framegen DLSS4 forced, fixes Framegen Leak. At least in my limited testing, VRAM usage is not only lower overall, but I didn't see the usual gradual rise after 30mins-45mins of play.

One thing to note, Nvidia app currently only allows DLSS override for Framegen, not DLSS upscaler. (Apparently nvidia believes its not optimal and therefore upscaler DLSS4 for this title at least is considered, unsupported/unavailable for now.)

Back on topic, I played for 40mins and DLSS4 framegen on my 4090, I see an extra 12-18 FPS increase.

Monitored VRAM usage between Pripyat and Rostok and VRAM was noticeable lower and no-longer under an hour playthrough.

VRAM 10GB initial load in pripyat.
(4k, Dlss quality, epic settings, framegen-On, HDR on.)

Moving between cities, VRAM 11-13GB, but would steadily fallback to near 11GB or 10GB in a single play-session.

I THINK DLSS Framegen mem-leak IS fixed via new nvidia driver and official DLSS4 implementation.

(I did not test DLSS framegen without forced DLSS4 to see if Nvidia driver truly fixed or the FrameGen 4 actually provided the fix or both together.)
Last edited by Dumar; Jan 31 @ 9:24am
Originally posted by ac:

How many 'big' patches does it take to fix simple issue, or is it just cause Unreal Engine 5 is a pathetic engine... hmmm interesting ideas

Unreal Engine s#@%s, why the f#@% does it need to copy/move all the game files to a new location while patching them? cant it just patch/replace the existing files?

Because of how a SSD works its also causing extra wear to your SSD, but most SSD's now can handle much more read/write cycles than a few years back, but still this method of updating really s#@%s because it takes much longer than simply replacing a few MB or GB of files.
Yes, for me, the new Nvidia Frame Gen override via the new App fixed my Vram running full because of using the PDA. Or at least I think, could also be the driver.
I force Super Resolution with Nvidia Profile Inspector. Works great and looks good.
The visual improvement is huge. I use model K.
Last edited by Bushwick36; Jan 31 @ 9:45am
Dumar Jan 31 @ 12:27pm 
Originally posted by Bushwick36:
Yes, for me, the new Nvidia Frame Gen override via the new App fixed my Vram running full because of using the PDA. Or at least I think, could also be the driver.
I force Super Resolution with Nvidia Profile Inspector. Works great and looks good.
The visual improvement is huge. I use model K.

I don't wanna take a performance hit with new DLSS Upscale Preset K.
(I love the extra frames I gained from FrameGen DLSS4 :steamsad:)

I wonder why Nvidia doesn't think this game is ready via their app for DLSS Upscale Preset - Odd.
Last edited by Dumar; Jan 31 @ 12:27pm
Originally posted by Spartanz1080:
Stalker 2 supports the updated frame generation model that released today with the NVIDIA app and drivers. You can use it with regular frame generation on a 40 series card within DLSS override settings. I hope it fixes the performance degradation from the in game frame generation that drops the game to 30 fps after a few hours and has never been fixed by any patch and they have never seem to have acknowledged the issue but it’s what has kept me from playing the game and enjoying so maybe some testing is in order.
It doesn't matter what kind of sampling technology you use with the game. I.e. if the game is telling your GPU to process its crappy video code your video card is limited to what it can do. This applies to forcing DLSS4 without corresponding DLSS4 DLLs in the game; you are layering FrameGen on top instead of with. The game needs more refinement as it in itself is not optimized. If you're trying to use a frame generating technology on frames that are not optimized you get non-optimized pre-generated frames; just cycling the issue. The last patch was not meant to fix 'everything' it was meant to address the bigger game breaking issues. What fixes something for most users may not address every user and the various hardware configurations. They are trying to help as many users as possible with each patch.

You can update S.T.A.L.K.E.R. 2: Heart of Chernobyl to DLSS 4 using DLSS Swapper:
https://github.com/beeradmoore/dlss-swapper
Originally posted by Vi'ir Jul K'hane:
Originally posted by Spartanz1080:

You can update S.T.A.L.K.E.R. 2: Heart of Chernobyl to DLSS 4 using DLSS Swapper:
https://github.com/beeradmoore/dlss-swapper
But Which version of DLL should I select to have the Frame Generation? And How do I know I have it (on 4090) enabled and working in Stalker?
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Date Posted: Jan 30 @ 9:05pm
Posts: 10