Genuine Dell Workstation Nvidia Quadro 400 512MB PCI-E 2.0 x16 DDR3 DVI-I Display Port 64-bit Graphics Video Card Dell Part Numbers: 0HWGX0, HWGX0 Chipset: Quadro 400 Video Memory: 512MB DDR3, Memory Interface: 64-bit Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Stream Processors units: 48 Memory Bandwidth: 12.3 GB/s, Max. Resolution: 2560 x 1600 Connectors: DVI, DisplayPort Thermal: Fansink Support Microsoft Windows XP SP3/ Vista/ 7/ Linux/ Solaris Support Microsoft DirectX 10.1, Shader Model 4.1 and OpenGL 3.3 Maximum Power Consumption: 32W Support nVidia CUDA Architecture Support nVidia 3D Vision Technology, DRIVERS NOT INCLUDED