Key features oc selected edition gpu tweak geforce cuda support nvidia adaptive v sync nvidia physx ready nvidia 3d vision surround ready specifications chipset nvidia geforce gt 740 interface pci express 30 video memory 1gb memory type gddr5 engine clock 1033mhz memory clock effective 5000mhz memory interface 128 bit stream processing units 384 dvi d ports 1 hdmi ports 1 directx support 11 opengl support 44 compatible os windows vista windows 7 windows 8 product width 3