RTX 4090 Not utilize 100% GPU on 12900K

[sewerino26]

So I just installed my rtx 4090. Everything is working fine but for whatever reason it isn't utilizing 100% of my GPU. I have 12900K stock,DDR4 3600mhz 2x16gb.

Far Cry 6- 60% usage with 1440P DXR ON,ultra

Watch Dogs Legion 1440P - 60% usage with 1440P,RT ULTRA,DLSS QUALITY.

CP77 observation 1440P: DLSS off => 95% GPU usage. Then DLSS Quality, balance, performance will all generate same framerate but reduce gpu usage as you move towards performance. 80-90% usage

Metro Exodus Enhanced Edition - 50% usage ! on Taiga lvl,RT ULTRA,all ultra,maxed





Also i tried 3dmark tests and here is fine 100% usage there and there. Tested Control 1440P ( no DLSS ) , and its fine too 100% usage. Quake 2 rtx 100% usage fine too.



So my issue is with that 4 games. .I tried to revert to old drivers but not helped. Any ideas? Maybe try new hotfix?
I dont think its ram bootleneck then?



I found similiar topic:

https://www.reddit.com/r/buildapc/comments/y2l878/rtx_4090_not_utilizing_100_gpu/

 

[HRL]

Bench it at 4K and it will.

 

[bemaniac]

the other 2 at 4k will use 100% but these ones below have CPU issues at about 70-140fps in various areas even in 4k:

Far Cry 6- 60% usage with 1440P DXR ON,ultra

Watch Dogs Legion 1440P - 60% usage with 1440P,RT ULTRA,DLSS QUALITY.

A 13900K at 6.2ghz won't fix it either.

 

[SpellowHouse]

Far Cry 6, it won't. The 4090 performance with Far Cry 6 is about the same as the 3090ti.
I remember seeing this in a French test of the 4090 with the game.
The basic issue seemed to be resolution of 1440P, the 4090 dramatically pulls ahead of the 3090ti at 4K, but at 1440P it was only marginally better.

 

[sewerino26]

Ah ok. But why Metro Exodus Enhanced Edition on last camp i have 50% usage when looking at some points.

Will be any difference switching to 13900K and DDR5?

 

[Tykey]

as has been mentioned above, play games at 4k with graphics settings maxxed out, rather than 1440p, and it will utilize the gpu more.
lower resolutions use the cpu more, higher resolutions use the gpu more.

 

[sewerino26]

So nothing wrong with pc with that usages in FC6 and WD LEGION? Also bios is updated.

 

[LtMatt]

So I just installed my rtx 4090. Everything is working fine but for whatever reason it isn't utilizing 100% of my GPU. I have 12900K stock,DDR4 3600mhz 2x16gb.

Far Cry 6- 60% usage with 1440P DXR ON,ultra

Watch Dogs Legion 1440P - 60% usage with 1440P,RT ULTRA,DLSS QUALITY.

CP77 observation 1440P: DLSS off => 95% GPU usage. Then DLSS Quality, balance, performance will all generate same framerate but reduce gpu usage as you move towards performance. 80-90% usage

Metro Exodus Enhanced Edition - 50% usage ! on Taiga lvl,RT ULTRA,all ultra,maxed





Also i tried 3dmark tests and here is fine 100% usage there and there. Tested Control 1440P ( no DLSS ) , and its fine too 100% usage. Quake 2 rtx 100% usage fine too.



So my issue is with that 4 games. .I tried to revert to old drivers but not helped. Any ideas? Maybe try new hotfix?
I dont think its ram bootleneck then?



I found similiar topic:

https://www.reddit.com/r/buildapc/comments/y2l878/rtx_4090_not_utilizing_100_gpu/

 

[Szydero]

So nothing wrong with pc with that usages in FC6 and WD LEGION? Also bios is updated.

more like something wrong with you

 

[muon]

Why is someone with a 4090 running games at 1440p with DLSS on?

Also WD Legion and FC6 are clearly massively CPU bound at 1440p. It's not too far off a free bump to 4K which has over double the pixels.

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