VisionTek Radeon 3450 512MB DDR2 AGP (DVI-I, VGA) Graphics Card - 900374 DirectX 10.1/Shadier Model 4.1 support 8x AGP Bus 55nm process technology ATI Power Play energy conserving technology 40 stream processing units DirectX 10.1/Shadier Model 4.1 support 8x AGP Bus 55nm process technology ATI Power Play energy conserving technology 40 stream processing units 64-bit memory interface