6870 Crossfire

[crono37037]

Hello,
I have been trying to figure out whats going on with my rig for 2 days now. I am getting no performance gains in Crysis Warhead with crossfire enabled. The average Fps doesnt move at all, and gpu-z is showing one gpu at 0%. I have all the latest drivers and even reinstalled windows today. I can play BF:BC2 with crossfire enable and nearly double my fps. Any help would be greatly appreciated.
My specs:
Phenom II x4 955BE @ 3.8Ghz
2x ASUS 6870 Direct CU 915/1050
4Gb RAM
650 Watt Antec Earthwatts

 

[crono37037]

Hello,
Thanks for the fast reply. I done exactly what you said and I saw no improvements. Here are some benchmark results. Also I noticed you must run gpuz twice to see the usage of both gpus. They are running at about 50-60% each.

Multi Gpu Enabled:
System Information
Operating system: Windows 7 Ultimate
System memory: 4.0 GB
CPU: AMD Phenom(tm) II X4 955 Processor
CPU speed: 3790 MHz
Graphics card: - 0 MB
Benchmark information
Demo: Airfield
Quality: High
Renderer mode: DirectX 10
Antialising mode: Off
Filtering mode: None
MultiGPU support: Enabled
Boost renderer: Disabled
Use Custom Config File: No
Random .exe: Disabled

Resolution: 1920×1080 (HD WideScreen)
Result(1): Minimum= 35 FPS Average= 46 FPS Max= 64 FPS



Multi GPU disabled:
System Information
Operating system: Windows 7 Ultimate
System memory: 4.0 GB
CPU: AMD Phenom(tm) II X4 955 Processor
CPU speed: 3800 MHz
Graphics card: - 0 MB
Benchmark information
Demo: Airfield
Quality: High
Renderer mode: DirectX 10
Antialising mode: Off
Filtering mode: None
MultiGPU support: Disabled
Boost renderer: Disabled
Use Custom Config File: No
Random .exe: Disabled

Resolution: 1920×1080 (HD WideScreen)
Result(1): Minimum= 35 FPS Average= 47 FPS Max= 66 FPS

 

[crono37037]

I am using 11.2, but I have tried 11.1a and 10.10e with the same results.

 

[crono37037]

Yeah i just downloaded the latest ones earlier.

 

[crono37037]

This is what gpuz was showing after playing BFBC2, as you can see it uses 100% on both gpus. This is not the case in crysis though, as it only uses 50-60% of each gpu. Also when i enable vsync it locks it at 24 fps.

 

[crono37037]

I just played this crysis 2 demo and it plays great. It uses 100% of both gpus so i guess its just an issue with Crysis warhead.