I have 8 gigs of ram, i5 3570k 4.2ghz, and a hd 7970 and I don't think I'm getting the amount of fps I should be getting.
With everything on ultra except shadows on high and multisampling at 4x I'm getting around 45-65 fps in open zoned areas. But I have seen benchmarks of the HD 7970 getting 100+ fps. I have no clue why I am getting lower than that...