ok I will just stay at stock the only game I really play on my pc is gta4 at medium high settings works just perfectly. thank you for your help.
btw I am writing this with my ps vita 
-------------------------
Gigabyte Ga-MA78GPM: Phenom II 940BE- O.C. 3.3 gigahertz: 4 Gigs OCZ AMD Special Edition DDR2-1066: OCZ ModXStream Pro 500 watt: XFX ATI 5750 O.C. 820-1200: ThermalTake v3 Black Edition: 2X Liteon DVD-RW/W Litescribe:Liteon Bluray rom: WD Black 750 gig: WD 320GB Caviar ide : Win 7 Home Premium X64: Arctic Cooling Freezer 13 CO: 1 120-mm Blue Cooler Master as exhaust fan: 23" Acer s231hl Lcd Monitor: