if you are using win7 or under you need to get a windows hot fix for the 8150 (any of the "FX" bulldozer / piledriver cpu's) i have a FX8350 (overcloced to 1.4 but still runs 60 when now) with 16 gb of ram and a gtx 760 and i play all day @ 60 FPS 1080p (ultra 2x AA) on most maps .. i get some frame drops now and then but nothing to complain about
whats your res as that has a massive impact on the game
this hot fix just fixes some threading things in the windows manager stuff
hotfix
http://support.microsoft.com/kb/2645594