GTX 560 low GPU Usage

idono

Distinguished
Jul 17, 2011
80
0
18,630
Hi i recently tried to figure out why specificly BF3 was running poorly and i noticed that my GPU load never goes over 50%. At best it's at 47% and avrage is at about 38%.
I started doing tests in other games also. Shogun 2, Dawn of War 2, Serious Sam 3 and so on. All those games use a little more power than BF3 (avg 45%). I did various tests configs and even tried reinstalling my computer but im still getting the same results.

I used GPU-Z with it's loging function while conducting these tests, while also monitoring my memory and CPU usage to make sure that it's not bottlenecking. I found no evidence of them bottlenecking though. CPU never goes over 90% usage (60% for Dawn of War 2: Retribution)

All the games were running silky smooth during fall with no stutter. I could run Shogun 2 without any kinds of stutter or slowdowns Now Shogun stutters and animations are tearing.


My system specs:
Core 2 Quad Q8400 2.66 Ghz
4GB DDR2 1066 MHZ
Gigabyte GTX 560 SOC

I belive it's driver problems but i can't really prove it. I also tried fiddeling with the settings in the Nvidia Controlpanel setting them to maximum performance with no result.

Any idees on what it could be?
 

idono

Distinguished
Jul 17, 2011
80
0
18,630
Benchmarks and playing the game for a few mintues. Also to add. I've only see 90-99% spikes when loading.
To clarify. It's not turning low. It's using max clock but only running at or less than 50% capacity.
 

idono

Distinguished
Jul 17, 2011
80
0
18,630
I reinstalled windows today. But that was after doing the first batch of tests and swaping drivers etc. I needed a reinstall badly. But either way the problem persists.
 

idono

Distinguished
Jul 17, 2011
80
0
18,630
Honestly i dont really know what i did. I only recently noticed it. I havent played Shogun 2 since Septemer when it worked flawlesslie. Then BF3 came out and i guess i updated my Nvidia Drivers.
 
Well that's strange, if you still has issues you can use MSI afterburner to overclock it and see the temperatures and usage. If you still has the problem you can try overclocking your CPU from your BIOS. If you still have the issue can you show me the specs of your whole system?
 

idono

Distinguished
Jul 17, 2011
80
0
18,630
Already OCed my CPU but i downclocked it to deffauly thinking that the problem was there. But as said it's not a bottleneck. I'll give it a try with some older drivers.
 

idono

Distinguished
Jul 17, 2011
80
0
18,630
Ok so i tried the older drivers and it's the same. MSI Kombustor on the other hand manages to use 99-100% of the GPU with no problems what so ever. While games are still around 40-50%
 

idono

Distinguished
Jul 17, 2011
80
0
18,630
1680x1050.

Just notice something. MSI Kombustor is using OpenGL 4.1 while all testing i've done is in DirectX driven software. Any other testing software that uses OpenGL so i can test it out?
 

idono

Distinguished
Jul 17, 2011
80
0
18,630
This is how the GPU usage looks when i play Battlefield. It's really sporadic. FPS dips down to 23 fps when the GPU usage is at it's lowest.

GPUUsage.png
 

justme1977

Distinguished
Jul 1, 2011
27
0
18,530


If those games only run 2 treads (like most newer games still do) then a 50% load on a quad core would indicate that 2 cores are maxed out.

My bet, that 560 is bottlenecked by your cpu.
 

idono

Distinguished
Jul 17, 2011
80
0
18,630



Already checked the core load. All of them are being used. Either way DoW2 is a 3 year old game and shouldn't have any problems running
 
if vsync is off and you arent getting 99% gpu usage then you have a cpu bottleneck.
If your cpu is at 90% usage and your gpu is at 35% then either vsync is cutting it low or your cpu cant process fast enough becoming a bottleneck for your gpu. thats is typically how a cpu bottleneck is displayed is by high cpu usage and low gpu usage.
 

idono

Distinguished
Jul 17, 2011
80
0
18,630



dont think that's the case. I've seen posts with people using i5s, i7s having GTX 560s and Titanium versions having the same problems.

I went ahead and clocked my system now and i'm honestly not seeing an increase in performance at all.
 

idono

Distinguished
Jul 17, 2011
80
0
18,630



Nope. I crunched away and i decided that it's not worth the hassel in time since i can't aford spending 2-3 days figureing out whats wrong. So instead i'm going to invest on some cheap hardware untill the Haswell release next year.
 

Vettedude

Distinguished
Apr 10, 2009
661
0
19,060

Not exactly. If the GPU Memory Bandwidth is too low then the GPU can't get fed and ends up sitting idle. Heck when I game on my old DDR2 based HD 4350 playing COD1 the CPU will chug away at 40% (Core 2 Quad) and the GPU will be at 60% with Vsync off. The slow memory (8 GB/s bandwidth) can't feed the GPU. Overclocking memory helps this. But this doesn't sound like his problem.
 

loungistkid

Honorable
Mar 5, 2012
4
0
10,510
I recently purchased a rosewill 630w psu and evga 560 ti fpb to upgrade my stock HP m9402f desktop. The desktop is all stock components, including an AMD 9650 2.3ghz stock quad and 7gig ddr2. After the upgrade I was excited, thinking I'd finally be able to play Final Fantasy XIV.

I ran the benchmark for FFXIV right after installing the hardware and received a terribly low score. Nothing like what I was imagining. I then tried the game itself, and was met with terrible performance considering my components. While monitoring cpu and gpu activity throughout this time, I noticed neither was going above 40-50%. I researched all night long, reading and trying virtually everything I could find about low cpu/gpu usage on games and nothing seemed to work.

One of the options I looked into this night was power and energy settings. I set it for high performance and also started a default sleep time instead of shutting my computer down at the end of the night before bed. When I woke up the next day and woke the computer from sleep instead of a full boot up, the problem completely stopped.

I'm getting the 60 capped fps now in FFXIV outside of towns, not to mention the computer in general is faster at performing it's regular tasks. Next, I restarted the computer, and the problem came back. I then forced the machine into sleep from start menu, let it sit for a few seconds, powered back on, and now everything is performing great again.

On the FFXIV benchmark I would get a 1500 in performance after a fresh restart or bootup. After resuming from sleep, the score went to 2700 low res. GPU and CPU usage both skyrocket.

I have no idea what is happening when the computer wakes from sleep that allows for full performance, but I'm finally able to enjoy games with near full gpu/cpu usage. I normally don't ever write or reply to these threads, but the low gpu/cpu usage was absolutely driving me crazy and I really wanted to offer my solution incase it works for even one of you.

Also, if anyone is able to actually say what is happening that is causing this, I would love to know.