if your cpu isn't clocking up during gaming, it's a low cpu game. Bring up your task manager while the game is up? are all your cores MAXED? if not, it's not your cpu. My 6 core AMD runs at 800mhz and can clock all cores up as needed up to 3ghz and then turboboost some cores to 3.4 or something. It's the way the cpu is supposed to work. Check to see if your cpu is maxed.