9900ks good enough for a 3090?

[Felon]

I have a 3090 and an Intel 9900KS, I mostly game at 4k.

In terms of getting the most out of my GPU, would I likely gain any performance if I upgraded my CPU? or when running at 4k, are things so highly biased towards the GPU that the CPU won't make much difference?

Just want to make sure I'm getting the most out of my 3090.

Cheers,

 

[Felon]

Fair enough, thanks

 

[Felon]

lol thanks for all the replies guys,

I did want to add, that I've been doing more and more 3d rendering these days, (it's something I've done for years) and I feel like I could probably gain a lot more performance here if I went with many more cores? I imagine this will make zero difference to gaming, but it's the 3d rendering where I'm struggling..

I assume AMD is the way to go, if I wanted something with more cores?

 

[Felon]

AMD is the only way to go. Thread-ripper might be worth considering.

Looking at the 5950x potentially,

Don't the AMD chips require much faster memory, or does it not make much of a difference?

 

[Felon]

From the research I've done, my understanding is that at 4k everything is so heavily weighted on the GPU, that a slower or faster CPU will make literally no difference.. If I was playing CS:GO at 1080p, I might see my FPS go up or down by 100-200FPS or whatever, but at 4k - I won't notice anything.

The reason I got a 3090, is that I managed to get one at close to MSRP back in December, so it was a good buy at the time.

 

[Felon]

It’s not that simple. A higher performance CPU will offer higher performance. Shock horror.

4K isn’t really much of a problem for today’s cards.

If you look at most benchmarks, the difference at 1080p with a game like CS:GO between a slow CPU and a fast CPU, the difference might be like 100-200fps,... As a game like that will do up to 650FPS.

However, looking at 4k benchmarks (where I can find them) the difference between a fast CPU like a 5950x and everything else, seems to be like 1-2fps at max in almost all games.

My understanding for this, is that because the GPU has to render each frame at 4k, it has so much to do in terms of raw texture fill-rate, everything else is slowed down to the point where the CPU simply isn't being taxed much.

 

[Felon]

I don’t think you’re in bad shape with the 9900K, but you are leaving performance on the table compared to a 5950X say that will push the 3090 to its max in every scenario.

Thing is, if I play a game like BF5 at 4k, with RTX on, on ultra - my CPU is at about 50-60%, but the GPU is absolutely pinned at 100%, giving 100-120fps. So I'm not sure how I could get anything else out of the GPU, it looks like it's operating at maximum speed?