Low GPU utilization with GTX 780

[Zaneisback]

After having created another thread about this current issue that solved another problem I decided to create this one in hopes that my problem can be solved.

My GPU does not overheat and there is no CPU utilization bottleneck so the idea that my card is only using half of it's GPU in games like FO4 and dropping to 45 FPS is rather alarming.

However I can achieve 100% GPU utilization in synthetic benchmarks like MSI Kombuster.

Are there any known fixes to this issue?

Specs:
EVGA GTX 780
FX-8350 @ 4.2 GHz
Corsair H110i GT Liquid Cooler
Corsair Air 540
Patriot 16GB DDR3 4x4 kit @ 1600MHz
Corsair RM850 PSU

 

[rolli59]

http://www.techspot.com/review/1089-fallout-4-benchmarks/page5.html Done with 980Ti
780 a few frames behind 980Ti http://www.techspot.com/review/1089-fallout-4-benchmarks/page2.html

 

[Zaneisback]

http://www.techspot.com/review/1089-fallout-4-benchmarks/page5.html Done with 980Ti
780 a few frames behind 980Ti http://www.techspot.com/review/1089-fallout-4-benchmarks/page2.html

Yea, I would assume the 780 wouldn't get as many frames as the 980 ti but the problem is the low GPU utilization.

 

[rolli59]

In the CPU benchmark link!
6700K gets min 91fps with 980Ti call that 91% GPU utilization
FX 8350 gets min 54fps with 980Ti based on above it would be 54% GPU utilazation

Huge difference is it not?

 

[Zaneisback]

In the CPU benchmark link!
6700K gets min 91fps with 980Ti call that 91% GPU utilization
FX 8350 gets min 54fps with 980Ti based on above it would be 54% GPU utilazation

Huge difference is it not?

Yes there is. The FX-8350 is a budget oriented CPU that will bottleneck a 980ti resulting in a minimum FPS of 54.

On the other hand though, the FX-8350 shouldn't bottleneck or result in a massive difference in performance with the GTX 780. The lack of performance on my part seems to be caused by the low GPU utilization of my graphics card.

I'm probably just missing something, so I'm sorry if I come off as an idiot. Thanks for replying.

 

[rolli59]

I am simply saying there is a bottleneck with the FX which is causing the low utilization, here is an example of the opposite http://www.techspot.com/review/1006-the-witcher-3-benchmarks/page5.html the CPU's are much closer together.

 

[Zaneisback]

I am simply saying there is a bottleneck with the FX which is causing the low utilization, here is an example of the opposite http://www.techspot.com/review/1006-the-witcher-3-benchmarks/page5.html the CPU's are much closer together.

Hmm. Okay, I know that there isn't a temperature bottleneck nor a CPU usage bottleneck as it doesn't seem to go beyond 70-80% usage.

Is there another kind of bottleneck that I'm not aware of?

 

[rolli59]

As you see it is game dependent, Fallout4 likes Intel's architecture better than AMD's so it performs better on a I3 than on FX 9590 @ 4.7GHz. Is that a CPU bottleneck, I would think so.

 

[maxalge]

In the CPU benchmark link!
6700K gets min 91fps with 980Ti call that 91% GPU utilization
FX 8350 gets min 54fps with 980Ti based on above it would be 54% GPU utilazation

Huge difference is it not?

Yes there is. The FX-8350 is a budget oriented CPU that will bottleneck a 980ti resulting in a minimum FPS of 54.

On the other hand though, the FX-8350 shouldn't bottleneck or result in a massive difference in performance with the GTX 780. The lack of performance on my part seems to be caused by the low GPU utilization of my graphics card.

I'm probably just missing something, so I'm sorry if I come off as an idiot. Thanks for replying.

a 780 isn't a budget oriented gpu, which is why your cpu is bottlenecking it.

low GPU utilization is caused by your cpu not keeping up, it is waiting idle for your cpu to catch up

 

[RobCrezz]

Try clocking you 8350 to 4.5ghz+ if possible, see if that gets you a few extra frames? going by the benchmarks above its clear the CPU is holding things back when you see the 9590 geting 5fps more, with essentially just more clockspeed.

 

[Zaneisback]

Try clocking you 8350 to 4.5ghz+ if possible, see if that gets you a few extra frames? going by the benchmarks above its clear the CPU is holding things back when you see the 9590 geting 5fps more, with essentially just more clockspeed.

Sure. I'll update this comment when I'm in a situation where that is possible.

 

[Zaneisback]

In the CPU benchmark link!
6700K gets min 91fps with 980Ti call that 91% GPU utilization
FX 8350 gets min 54fps with 980Ti based on above it would be 54% GPU utilazation

Huge difference is it not?

Yes there is. The FX-8350 is a budget oriented CPU that will bottleneck a 980ti resulting in a minimum FPS of 54.

On the other hand though, the FX-8350 shouldn't bottleneck or result in a massive difference in performance with the GTX 780. The lack of performance on my part seems to be caused by the low GPU utilization of my graphics card.

I'm probably just missing something, so I'm sorry if I come off as an idiot. Thanks for replying.

a 780 isn't a budget oriented gpu, which is why your cpu is bottlenecking it.

low GPU utilization is caused by your cpu not keeping up, it is waiting idle for your cpu to catch up

I'm aware my GPU isn't budget oriented. I was referring to my CPU, the FX-8350. However I was under the impression when I bought my processor that it wouldn't bottleneck any modern graphics card.

I now believe I was wrong.

 

[rolli59]

In the CPU benchmark link!
6700K gets min 91fps with 980Ti call that 91% GPU utilization
FX 8350 gets min 54fps with 980Ti based on above it would be 54% GPU utilazation

Huge difference is it not?

Yes there is. The FX-8350 is a budget oriented CPU that will bottleneck a 980ti resulting in a minimum FPS of 54.

On the other hand though, the FX-8350 shouldn't bottleneck or result in a massive difference in performance with the GTX 780. The lack of performance on my part seems to be caused by the low GPU utilization of my graphics card.

I'm probably just missing something, so I'm sorry if I come off as an idiot. Thanks for replying.

a 780 isn't a budget oriented gpu, which is why your cpu is bottlenecking it.

low GPU utilization is caused by your cpu not keeping up, it is waiting idle for your cpu to catch up

I'm aware my GPU isn't budget oriented. I was referring to my CPU, the FX-8350. However I was under the impression when I bought my processor that it wouldn't bottleneck any modern graphics card.

I now believe I was wrong.

FX CPU's were first introduced in 2011 with Bulldozer then got the Vishera update in 2012 (your FX8350) really just a bug fix. 2011 Intel had Sandy bridge core architecture, since then we have seen Ivy Bridge, Haswell and now Skylake for mainstream. Eack of those have been somewhere between 5-10% increase in CPU core performance and the FX struggled to keep up with Sandy Bridge at a time.
Conclusion of course they will bottleneck compared to better CPU's

 

[Zaneisback]

In the CPU benchmark link!
6700K gets min 91fps with 980Ti call that 91% GPU utilization
FX 8350 gets min 54fps with 980Ti based on above it would be 54% GPU utilazation

Huge difference is it not?

Yes there is. The FX-8350 is a budget oriented CPU that will bottleneck a 980ti resulting in a minimum FPS of 54.

On the other hand though, the FX-8350 shouldn't bottleneck or result in a massive difference in performance with the GTX 780. The lack of performance on my part seems to be caused by the low GPU utilization of my graphics card.

I'm probably just missing something, so I'm sorry if I come off as an idiot. Thanks for replying.

a 780 isn't a budget oriented gpu, which is why your cpu is bottlenecking it.

low GPU utilization is caused by your cpu not keeping up, it is waiting idle for your cpu to catch up

I'm aware my GPU isn't budget oriented. I was referring to my CPU, the FX-8350. However I was under the impression when I bought my processor that it wouldn't bottleneck any modern graphics card.

I now believe I was wrong.

FX CPU's were first introduced in 2011 with Bulldozer then got the Vishera update in 2012 (your FX8350) really just a bug fix. 2011 Intel had Sandy bridge core architecture, since then we have seen Ivy Bridge, Haswell and now Skylake for mainstream. Eack of those have been somewhere between 5-10% increase in CPU core performance and the FX struggled to keep up with Sandy Bridge at a time.
Conclusion of course they will bottleneck compared to better CPU's

Ah ok. I might wait for AMDs new Zen CPUs to release before I make any kind of a processor switch. Thank you all for your suggestions. I like sticking with the Red (hot) team for CPUs.

 

[maxalge]

Ah ok. I might wait for AMDs new Zen CPUs to release before I make any kind of a processor switch. Thank you all for your suggestions. I like sticking with the Red (hot) team for CPUs.

Given their current troubles, and their past releases. I don't think zen is going to target gamers.