Question Is my cpu bottlenecking gpu

[Dragsham]

I have a self built rig for elite dangerous VR.
VRfps app shows my cpu @9 to 12% under load all green. No frametime loss. Using all cores.

My 3090fe shows @ 90% + under load.
Afaik it's nominal. But perhaps I'm misreading the info.
Cpu is a i9 9900k
So is the cpu slowing me up some?

 

[Lutfij]

Welcome to the forums, newcomer!

What is the make and model of your motherboard? BIOS version for said motherboard? How are you cooling the processor in your build?

 

[Dark Lord of Tech]

The pairing is pretty decent actually. Yes the 3090 is the more elite performer of the two.

 

[Dragsham]

MSI MPG Z390 GAMING PLUS LGA 1151 Intel Z390 DDR4 USB 3.1 ATX Motherboard
Water cooled single aio.
Latest revision of boards bios.
Oh forgot to mention 4x8gig ddr4 4400mhz ram
Gpu under load is 70c. Cpu about 55c to 65c under load.
Fractal meshify c case with 3 filtered front fans drawing air in.
Base fan filtered drawing air in.
Two case fans one at the top alongside single aio the other topmost back exhausting.
The gpu exausts out the back too.
Seasonic titanium 850w psu

 

[geofelt]

There is no such thing as "bottlenecking"
If, by that, you mean that upgrading a cpu or graphics card can
somehow lower your performance or FPS.
A better term might be limiting factor.
That is where adding more cpu or gpu becomes increasingly
less effective.

A 3090 card is about as good as it gets for graphics today.

The cpu busy of 9-12% can be misleading.
Your 9900K has 16 processing threads.
Windows will spread activity over all available threads.
It is very possible that your app is primarily dependent on the performance of a single master thread.

Run the cpu-Z bench on your 9900K.
You should get a number like 630:
http://valid.x86.fr/bench/zc5ym6/1

I don't know how you are measuring performance not if it is currently not as good as you want.

New processors and graphics cards are coming in the next month or so if you are interested in upgrading.

 

[Dragsham]

Vr fps is a floating app ingame I can see below me as I play. It tells me all the stuff I've said so far. In real time.
Frametime loss is shown as red. Reprojection is yellow and green is good to go.
The cpu is almost alway green
The gpu is almost always green too apart from on planetary landings and orbiting assets which is the games lack of optimisation I think. Still waiting on odyssey being fixed hehe.
No I just thought I could get a new gen cpu board etc and gain more fps.

 

[hotaru.hino]

Another issue could just be how the software was done. For example, the best any computer has been able to run the original Crysis is something like 80FPS. Is it because Crysis is still a beast? No. It's because designed with the expectation that we would have 15GHz single core CPUs by now, so the game doesn't bother with multithreading.

If the software wasn't designed that well (which is easy to suspect, but hard to actually figure out), then it won't matter what you throw at it.

 

[perrynick000]

your only over 100 wats on the suggested PSU for that card, the serving suggestion on my breakfast cereal would leave me pretty Hungry if I took them serious.

 

[geofelt]

Vr fps is a floating app ingame I can see below me as I play. It tells me all the stuff I've said so far. In real time.
Frametime loss is shown as red. Reprojection is yellow and green is good to go.
The cpu is almost alway green
The gpu is almost always green too apart from on planetary landings and orbiting assets which is the games lack of optimisation I think. Still waiting on odyssey being fixed hehe.
No I just thought I could get a new gen cpu board etc and gain more fps.

New gen is definitely faster than the 9900K.
And the new 13th will be even more so.
Perhaps a back handed way to tell how much your game depends on the cpu is to set it to 70% max performance using windows power management.
If it makes a big difference, you would likely benefit from an upgrade.

 

[Dragsham]

Thanks everyone for replys. I'll wait for the new AMD cpus to arrive, treat myself hehe.

 

[Viking2121]

Eh, the 9900k should still be fine with that card, for the most part, some newer games like Battlefield might push that 9900K to 100% with a 3090 but it still should be vary playable and I mean that's really the only scenario I can honestly think of, the 9900K still has a pretty good single core performance as well so even single-threaded games still should play well.

If you are planning to upgrade anyway, and you got good cooling, give the CPU a little bump, manually set it to 5ghz, stock turbo boost won't allow for an all-core boost to 5ghz at all times so 5ghz all core should yield some gains, It should do 5.2 relatively easy as well, a free little jump in performance.

Good Luck!