Models: GF6600LE-128MDDR product information: Chipset Type: Nvidia GeForce 6600LE(NV43) Memory Capacity: 128M Memory Type: DDR Graphics Bus Technology: PCI-Express Memory Interface: 128bit Video Output Function: 1*VGA 1*TV-OUT 1*DVI Features: Core Clock: 300MHZ Memory Speed: GDDR TSOP Memory Clock: 400MHZ Pixels Pipeline : 4 Support Nvidia TurboCache Technology High Dynamic-Range support Nvidia Intellisample Technology 4.0 NVIDIA?SLI?Technology Complete DirectX support, including the latest version of Microsoft DirectX 9.0 Shader Model 3.0 Full OpenGL support, including OpenGL 2.0 Operating Systems Windows XP/Windows XP 64 Built for Microsoft Windows Vista Windows 2000 Linux Macintosh OS X