I was having severe stutters and extremely low FPS with my crossfire setup. Creating a custom crossfire profile greatly improved this to the levels before the patch or even better!
I am using 12.4 drivers with the latest CAP
Steps for creating a custom crossfire profile using the Catalyst Control Center :
1. Open CCC, click on 3D Application Settings, and scroll down to the section called "
AMD CrossFire Mode for 3D Applications". Select option: "
Use AMD Pre-defined Profile".
2. Select
LostPlanetDx10.exe application profile.
3. Scroll back up to the top of the Application Profiles section and click
<<New Application>> and Save.
4. Find COD folder "
C:\Program Files (x86)\Steam\steamapps\common\il-2 sturmovik cliffs of dover" and open
Launcher.exe.
5. Done. (it would not hurt to reboot your system at this time.)
With this tweak I am seeing ~75% improvement in FPS and a significant reduction of stuttering!
See my blog for same same instructions with pictures:
http://roadczar.com/th10/?p=421