Yeah, I know of this kind of issue. The problem is the new CCC, but old behaves like crap so in this driver case it's lose the options or lose the optimize. Code: expand atioglxx.dl_ atioglxx.dll Do this from any driver and copy the 'atioglxx.dll' to game folder (perferably also same on 'atiglpxx.dl_'). I'd test v10.4b first google it up and then v9.7. These are major jump versions on ATI. (10.4 WHQL was new set already over 10.4b and v9.8 is a new set above v9.7). It doesn't need profiling this is/will be like running 'dirt 2' or 'grid'. So, it's gonna have an issue with processing 'really big one on CFX' where best driver they can dump up will be some combination of 10.8b5(10.9a) in the DX10-11 drivers. Working on it I think I can improve these kind of games on single cards at least quite a bit.