Crossfire 6970s low frame rates SC2?

[BisonWeapon]

Hey guys I'm new to crossfire and I just got a second HD 6970. I'm not sure if I have my cards configured correctly. I have tried a lot trouble shooting methods already and I'm pretty sure I am doing things right.

First off the drivers I am using are 11.10 and 11.9 CAP 4 and BIOS version is up-to-date. I'm reading on other forums of people running this game 150fps with similiar rigs in crossfire and 80fps on a single HD 6970.

My RaedonPro is configured correctly I believe, I see the crossfire overlay in the upper right hand corner. So I'm not sure what is going on. Basically I am getting about 70-75fps when nothing is going on i.e mining, building units/structures and I get a 50fps even down to 40fps when a lot of action is happening.

I believe I should getting a lot better frame rate, considering my hardware....or I could be wrong. I am how ever running a very high resolution 2560X1600 on Ultra settings.

SPECS:
Corsair Force 120GB SATA II SSD
Corsair Vengance 12GB DDR3 1600Mhz
ASUS Sabertooth X58
Raedon HD 6970 x2
i7 - 950 3.06GHz
Dell 30" 2560X1600

Do these frame rates seem appropriate for my hardware? Or is there a bottle neck somewhere? If someone could please help me out or shed some light on this that would be appreciated.

Thanks

 

[QuiteSufficient]

That is normal. The game is very, very cpu limited.

http://www.techspot.com/review/305-starcraft2-performance/page10.html

There is really no increase to be had by moving up in GPU, especially at high res. I don't think my performance is any different between having the 590 run normally, or turning one gpu off.

http://www.techspot.com/review/305-starcraft2-performance/page13.html

If you went to 4ghz on your 950 your performance would improve dramatically. This is the one game where I can say there was also an equally big jump between 4ghz and 5ghz on my cpu.

 

[-Sn1PeR-]

Make sure you are running fullscreen (not borderless windowed) for CF to work. I personally play borderless windowed for easier alt+tabbing and am happy with one cards performance in this game. Are you loading both GPUs if you watch the Afterburner overlay? I didn't have to mess with RadeonPro...

 

[BisonWeapon]

Yes I play in fullscreen mode, I'm not sure what Afterburner is.....