its vista hp 64 bit, x2 4200 4 gigs ddr2 and a bfg 8800gt oc, i built if for her for playing games but it was def a budget build. its handled most games she likes to play. shes currently been playing bioshock 2 to on high no aa. i just thought 700 mhz would show some kind of noticable difference when it comes to framerate, also resolution is 1280 x 1024