I am still having issues with crossfire for my 290x CF. I have tried the fixes suggested by amd as well as people on the web but no luck.
I am able to run the game all ultra and distant foliage at high and i get 55-90 fps with a single 290x (this includes tessellation fix for amd and hairworks)
Turning the second gpu on and I get 40-50 fps no matter what settings I use, it cant go above 50fps. My little brothers computer who is running a 6990 also lags.
Before the drivers were released I thought yep need drivers for CF. I tried new drivers on that setup as well and same performance, very bad even on all low, game is at 30-40 FPS on all low on that
system and a 6990 is not a bad card and should be able to handle the game on high.
I have a 5820k CPU, maybe can be a driver glitch with a particular cpu.
Any help is much appreciated, thanks.