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Getting low frame rates. My GPU is always running at low usage. Help?

Last response: in Graphics & Displays
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October 1, 2013 8:38:44 PM

Recently bought a GTX 760. I've noticed that in about half of my games I will not get anywhere near 75fps(75Hz monitor).

Here is what I noticed form my GPU monitoring:
I will stand in a small room or somewhere that doesn't take a lot of GPU utilization and I'll get 75fps at ~60%-70% GPU usage. Then when I go outside or into a spot that would require more usage (like particles, glow, character model load, physics interaction) my fps will drop between 20-40 and the GPU usage will drop to 20-30% usage.

This seems to be the opposite of what should happen. Turning off Vsync doesn't change anything either. If A game doesn't have vsync enabled, shouldn't your card always be running above 90% in order to try and be running at the fastest it can ?(up to the game engine fps limit of course)

I know it's not my CPU or my RAM bottle-necking because I monitor them as well.

Anyone who has experience with this; help would be appreciated.

OS: Windows 7 64-bit
Mobo: ASUS M5A88-V EVO (AM3R2)
GPU: Nvidia GTX 760 (Core clock: 1072. Mem clock: 6572)
CPU: AMD FX-4100 Quad core 4.2Ghz
RAM: 8GB DDR3 (frequency 1333)

I have no idea what's wrong
http://i.imgur.com/j9g3eeT.jpg

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October 1, 2013 8:43:13 PM

Old MMO+crap CPU (sorry but to be put with a 760 it is)=bad times. Your 760 will do absolutely nothing to help you in games like that, its all CPU, low usage just means the game is poorly optimized, 50% CPU usage is pretty typical, only recent and well written games take advantage of 4 threads to 100%. You have a bottleneck.

Move to an i5 (preferably a K series) and watch FPS skyrocket, expensive but the only way forward due to your scenario.
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October 1, 2013 8:46:06 PM

looks like a CPU bottleneck, try overclocking ur CPU
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October 1, 2013 8:54:19 PM

cookybiscuit said:
Old MMO+crap CPU (sorry but to be put with a 760 it is)=bad times. Your 760 will do absolutely nothing to help you in games like that, its all CPU, low usage just means the game is poorly optimized, 50% CPU usage is pretty typical, only recent and well written games take advantage of 4 threads to 100%. You have a bottleneck.

Move to an i5 (preferably a K series) and watch FPS skyrocket, expensive but the only way forward due to your scenario.


The thing is WoW is just an example. This happens BFBC2/BF3/Payday2/Crysis2&3/Saints Row3&4/Blacklight Retribution/Matro2033/Guild Wars2, ect.

I'm curious how it is a CPU bottleneck. When I bought this processor I wa under the impression that a quad core at 4.2Ghz(overclocked) was really good.
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October 1, 2013 9:08:14 PM

it's not just the clock speed, the architecture and IPC matter too, besides its not a real quad-core, its a dual core with AMDs version of HT
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October 1, 2013 9:13:23 PM

Yea, cores and clocks mean absolutely nothing. A 3570K has the exact same cores and clocks as a 4100, but the difference is double the performance at the very least.
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October 1, 2013 10:10:32 PM

Okay I get that a processor could be bottlenecking me.
However that would only seem to be the same when my CPU load is all four cores running at over 90%. But what I'm seeing here is my CPU constantly at 40%-60% usage while my GPU is still sitting at under 70% usage, meanwhile my FPS is still suffering
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October 1, 2013 10:43:43 PM

then it could be a power issue, either an insufficient PSU or some power saving settings u have applied, another possible cause could be overheating
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October 2, 2013 12:44:13 AM

You're in orgrimmar while it's crowded with just a bulldozer cpu. that's the problem.
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October 2, 2013 3:55:02 AM

Kelsipher said:
Okay I get that a processor could be bottlenecking me.
However that would only seem to be the same when my CPU load is all four cores running at over 90%. But what I'm seeing here is my CPU constantly at 40%-60% usage while my GPU is still sitting at under 70% usage, meanwhile my FPS is still suffering

As before, not all games can lever all of the CPU, some games cant even use more than 2 cores. I bet your CPU usage in BFBC2 and BF3 is way higher.
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February 12, 2014 2:50:46 PM

I am having similar issues but i have an i7 processor and a gtx 660.
i have no idea, people just tell me to throw it out and build a new one.. :( 
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