Why does skyrim lag with crossfirex even with 11.11b?

[brendanmatt]

Ok. So I just bought another gigabyte amd radeon hd 6670 1gb card. It hyper crossfires BUT, skyrim lags like hell when I put both together. But if I run just one, it works like a charm. I've tried renaming it to Fallout3.exe, tried 11.11, 11.11b and 11.11c but none of them work either. I've even tried the alt+tab trick but that doesn't work. PLEASE HELP!

 

[refillable]

11.12?

 

[jemm]

What are the other parts of your system?

 

[kinggraves]

Just to be sure...Have you downloaded the application profiles?

Also, you should be using 12.1 drivers.

http://www.neoseeker.com/news/17994-amd-catalyst-121-driver-adds-custom-app-profiles-better-skyrim-performance/

http://support.amd.com/us/kbarticles/Pages/Catalyst121Previewdriver.aspx

 

[Kari]

12.1a preview is the latest
http://support.amd.com/us/kbarticles/Pages/Catalyst121apreviewdriver.aspx
though there shouldnt be any skyrim improvements in it over 12.1 previews...

and 11.12 cap2 is the latest app profile available...

 

[brendanmatt]

thanks a lot. My rig is 2x AMD Radeon hd 6670 1gb, core 2 quad 2.4 ghz 8gb ddr3 ram x48c platinum edition msi motherboard. I'll try out the 12.1a and see if that works. Cheers! :/

 

[brendanmatt]

Best answer selected by BrendanMatt.

 

[brendanmatt]

oh and I have windows 7 ultimate 64bit os

 

[brendanmatt]

Umm... It made it REALLY bright, light flickering all of the time and still just as laggy. Any more suggestions?