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post #11 of 20
I am quadfire 6990 and all 4 gpus stay in 30%-40% usage range........

my fps is like 80-90's occasionally spikes above 100fps.. very playable, however it's not using full usage.

why?
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post #12 of 20
Quote:
Originally Posted by yappy View Post
I am quadfire 6990 and all 4 gpus stay in 30%-40% usage range........

my fps is like 80-90's occasionally spikes above 100fps.. very playable, however it's not using full usage.

why?
Why Quadfire? What resolution are you playing and the refresh rate?
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120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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post #13 of 20
eyefinity , but unfortunately its broken in BF3 right now.

even on a single 6990 the 2 gpus dont go above 50% usage.
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post #14 of 20
OP: Low GPU usage also comes form slow CPU. You have a 2500K which is more then enough but you should check it. Also you said all the game so its clearly something in your system and not the GPU.

As for yappy

Massive Massive CPU bottleneck.
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post #15 of 20
Quote:
Originally Posted by yappy View Post
eyefinity , but unfortunately its broken in BF3 right now.

even on a single 6990 the 2 gpus dont go above 50% usage.
What is your Eyefinity resolution? 7680x4800?

What do you think the FPS is supposed to be with Quadfire + AMD CPU?
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2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
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120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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ケンジ
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2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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post #16 of 20
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AMD PHENOM 1090T @ 4.2ghz GA-990FXA UD5 2X SAPHIRE 6990 G.SKILL 16GB 1600 
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CRUCIAL M4 256GB SSD DVD/BURNER WINDOWS 7 64BIT ASUS LCD 23" 
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CPUMotherboardGraphicsRAM
AMD PHENOM 1090T @ 4.2ghz GA-990FXA UD5 2X SAPHIRE 6990 G.SKILL 16GB 1600 
Hard DriveOptical DriveOSMonitor
CRUCIAL M4 256GB SSD DVD/BURNER WINDOWS 7 64BIT ASUS LCD 23" 
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post #17 of 20
Quote:
Originally Posted by yappy View Post
I am quadfire 6990 and all 4 gpus stay in 30%-40% usage range........

my fps is like 80-90's occasionally spikes above 100fps.. very playable, however it's not using full usage.

why?
Phenoms bottleneck crossfire setups, even 6 core models. Check this out:

http://www.sweclockers.com/artikel/1...d-3/5#pagehead

It already bottlenecks 6990, imagine how bad quadfire is. I am in the same boat as you with 955, my 5870s don't go over 65%. Start saving up for i5 or i7.
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post #18 of 20
ivy bridge next year .

thanks guys, it makes perfect sense. atleast my fps in bf3 is still good. 80-90fps.
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AMD PHENOM 1090T @ 4.2ghz GA-990FXA UD5 2X SAPHIRE 6990 G.SKILL 16GB 1600 
Hard DriveOptical DriveOSMonitor
CRUCIAL M4 256GB SSD DVD/BURNER WINDOWS 7 64BIT ASUS LCD 23" 
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post #19 of 20
why answer a persons question when he hijacks a thread and doesn't really have any problem whatsoever? Just cares about performance far too much (abit sad =[).
Anyway op check your power settings in windows control panel ensure its set to high performance.
    
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post #20 of 20
Quote:
Originally Posted by Amphetamines View Post
I'm getting ~30% GPU usage when playing BF3, and it's resulting in terrible FPS averaging around 20.
I'm using the 11.10 Preview 3 Catalyst drivers.
Is there any known way of fixing this issue, I've already tried lowering the video settings ingame with no visible result.

Cheers.
Download a benchmark tool like Heaven 2.5 or 3dMark and see if your GPU usage can go up to 100% and check your scores against others with similar cards.

Monitor your CPU usage when playing BF3 to make sure its not up at 100%.

Then download a CPU benchmark like Prime or similar and see if you can run both CPU and GPU benchmark at the same time. If you can, then it's not your components.

Does your MB have multiple 16x PCI-E slots? Can you move the card and see if it changes performance?
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2x500GB WD Caviar Black LG BR/DVD Windows 7 64 Samsung 46D6420 
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Logitech G15 Cooler Master Pro M700 Cooler Master 690 II Advanced Logitech G9x 
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