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Low fps in all games with HD7950 @1000mhz clock

post #1 of 115
Thread Starter 
Hey guys. Sorry if I've done anything wrong, I'm new here. I was looking for some kind of assistance with a low FPS problem I've been facing with this card. I by no means get 'unplayable' FPS although I definitely don't have the performance I deserve for the $300 I paid. I'll list one example that you may possibly be able to assist with. Today I bought Saints Row the Third, expecting an average FPS of 50-60 on ultra settings, as people have achieved all over youtube with this card. However, I average around 40-45, low being 30 and high being around 70 (rarely). I was lead to believe that this may be a CPU bottleneck as when I turn the setting down to low, I can still not maintain 60FPS at all; and I also have a fairly cheap processor (i3-2120 @ 3.30Ghz). However I ran task manager on my second monitor whilst playing and not a single core was at 100%. My overall/ average GPU usage (as monitored by Radeon Pro) was around 70%, never exceeding 85%. So this rules out a GPU bottleneck. My ram usage was around 50% so this rules out a RAM bottleneck. What else could it be?
A VERY important point is that I am using a SEPARATE power supply for my GPU (a generic 450w power supply, which does NOT have the sufficient amps for the card) although I've used this power supply for a while and had no problems (although when I push the powertune/clock setting up, my display crashes and a hard reset is required). I am using this PSU as I have yet to buy a new one, and I figured that because it is dedicated to the GPU and is not sharing any power with any other components, it should suffice - am I very wrong? I also LOCKED the GPU core at 1000mhz and monitored it during gameplay, it did NOT leave this clock speed. Also, temps are in the normal range.. 50-60 or so degrees. Any ideas? Thank you !!

MY SPECS:
i3-2120 @ 3.30ghz
6GB Ram (2.99 usable due to 32 bit operating system - getting 64 bit soon)
Powercolor HD7950
1x2 TB HDD
1x1 TB HDD
500w generic PSU powering all components of PC apart from GPU which is powered by a 450w generic PSU.
Windows Ultimate 32 bit

I will include a pic of my CPU and RAM usage as screen captured while my FPS was at 45. (the average fps i experience

)
post #2 of 115
I think, just briefly reading this post and then looking at specs at seeing an i3, that your lower than expected FPS can directly be attributed solely to your lack of cpu power.
post #3 of 115
Thread Starter 
I was thinking this too, although look at the screenshot of my cpu usage. Not one single core is hitting the roof... doesn't this rule out a CPU bottleneck?
post #4 of 115
Yea your two REAL cores are not far off maxing out, the other two are just HT can't really call them cores, try disabling HT to see if that makes a difference. Sorry the PSU probably is a big factor actually, what speed is your ram also?
post #5 of 115
Use gpu-Z to monitor the GPU load memory, core clocks, gpu % utilization. If all those check out then move onto the cpu. I'm thinking the gpu is not being utilized properly. your i3 is not a bad chip for gaming. better than a lot of amd processors in its days.
post #6 of 115
Thread Starter 
Quote:
Originally Posted by Collins00 View Post

Yea your two REAL cores are not far off maxing out, the other two are just HT can't really call them cores, try disabling HT to see if that makes a difference. Sorry the PSU probably is a big factor actually, what speed is your ram also?

Hmm, ok thanks for that. I'll disable HT and post results. Not good to hear about the PSU because it's $90 I'll be taking out of my i5 money which I'll have to make again. And my ram isn't fast - 1333mhz DDR3 but to my knowledge it's the fastest my mobo supports.
post #7 of 115
Thread Starter 
Quote:
Originally Posted by akbisw View Post

Use gpu-Z to monitor the GPU load memory, core clocks, gpu % utilization. If all those check out then move onto the cpu. I'm thinking the gpu is not being utilized properly. your i3 is not a bad chip for gaming. better than a lot of amd processors in its days.

I've done this. Here's some pics, all taken at the same time, showing FPS, GPU usage, VRAM usage and GPU core and memory clocks. Also, RAM and CPU usage (excuse the black bars my second monitor is an old CRT i had lying around.)
It should also be noted that my primary monitor is only a resolution of 1280x1024! I'd hate to see what'd happen if I got a 1080p monitor!

*
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post #8 of 115
Quote:
Originally Posted by antsc096 View Post

I've done this. Here's some pics, all taken at the same time, showing FPS, GPU usage, VRAM usage and GPU core and memory clocks. Also, RAM and CPU usage (excuse the black bars my second monitor is an old CRT i had lying around.)
It should also be noted that my primary monitor is only a resolution of 1280x1024! I'd hate to see what'd happen if I got a 1080p monitor!

You see the problem? Your gpu utilization is 40%! Thats 400mhz....instead of 1ghz clock it is supposed to run at. I'd try underclocking and undervolting the gpu. Also lower the gpu memory clocks back to stock.

PS if thats GTA try a different game. GTA doesnt like newer graphics cards
post #9 of 115
Thread Starter 
Quote:
Originally Posted by akbisw View Post

You see the problem? Your gpu utilization is 40%! Thats 400mhz....instead of 1ghz clock it is supposed to run at. I'd try underclocking and undervolting the gpu. Also lower the gpu memory clocks back to stock.

PS if thats GTA try a different game. GTA doesnt like newer graphics cards

I was led to believe that the reason it's only using 40% is because it only needs to use 40% at that point in time.. am I wrong? I didn't think it meant that it was running at 40% of clock speeds.. that would mean that when I have 0% CPU usage my CPU is running at 0ghz which couldn't be correct.. Sorry if I'm wrong. Anyway, thanks for the feedback, I'll go try that now. Also I noticed that when my FPS drops my cpu usage actually DECREASES... and when I go inside for example, and am running at 60fps, my cpu usage increases! Isn't that backwards?
Also, the game is Saints Row The Third, which I've seen running at an avg of 55 fps on youtube at 1080p.
Thanks smile.gif
post #10 of 115
Quote:
Originally Posted by antsc096 View Post

I was led to believe that the reason it's only using 40% is because it only needs to use 40% at that point in time.. am I wrong? I didn't think it meant that it was running at 40% of clock speeds.. that would mean that when I have 0% CPU usage my CPU is running at 0ghz which couldn't be correct.. Sorry if I'm wrong. Anyway, thanks for the feedback, I'll go try that now. Also I noticed that when my FPS drops my cpu usage actually DECREASES... and when I go inside for example, and am running at 60fps, my cpu usage increases! Isn't that backwards?
Also, the game is Saints Row The Third, which I've seen running at an avg of 55 fps on youtube at 1080p.
Thanks smile.gif

Usually GPU usage is around 90-99% when you play a game. If its lower then Gpu is not being utilized fully. I played that game on 1080p with a 6950 and I got around 50 frames. I don't quite remember the settings. With your setup you should easily be able to play 1080p. 7950 is one mighty card. If its anythimg less then something is not right. You are using afterburner for those onscreen usage details right?
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