How to enable Crossfire for Skyrim:
N.B. This is to improve performance only for crossfire AMD.
I've been getting really crappy fps in the town-centres. Worst of all at Whiterun where it even dips to 20 fps (which is hideous!).
This fix increased my lowest ever fps in the game (i.e. Whiterun using the same save) to 33 fps. Which while not blowing-mindedly high, is still a good 13 fps improvement over minimum and for me makes the difference between a playable game and an unplayable one.
[btw I'm not expecting miracles because although I've got a 5970, I've got only 4GB RAM, an old E8400 and am gaming at 2560x1440
]
Here's what to do:
--
Download Radeon Pro.
-- "Add new profile", by clicking the '+' button on top
-- Go C:\Program Files (x86)Steam\steamapps\common\skyrim) and select TESV.exe
-- Click on the "Launcher" tab on the right, and select the "Steam/Impulse" option.
-- Select the "Tweaks" tab and choose the "Bioshock" option for the "Force Crossfire X Profile"
-- Make sure you set the CF mode (MVPU Mode) to AFR (alternate frame rendering).
-- Right click on the Skyrim application to the left and click on "Apply Now"
-- Right click it again and select "Play"
I get the worst performance when I leave everything at default and not use Radeon Pro.
Doing the above steps increases my minimum fps by 13....
and.....
here comes the funny...
If I disable CF altogether (which is not possible for a dual gpu card unless you use some type of program like this one) I
gain yet another 5 fps