HP Nvidia Quadro FX1800 768MB GDDR3 DVI Dual DisplayPort PCI-Express 2.0 Graphics Video Card 519296-001.Nvidia GPU Model Number: Quadro FX 1800HP Part Number: 519296-001Compatible Part Numbers: 508284-001Specifications:Interface: PCI-Express 2.0 X16 Proccessor: NVIDIA Quadro FX 1800 RAMDAC Speed: 400 MHZ Memory: 768 MB Memory Technology: GDDR3 SDRAM Max Resolution: 3840 x 2400 at 60 HZ Shader Model: 4.0 API:OpenGL 2.1DirectX 10 Analog Signal: YesDigital Signal: YesMax Monitor Supported: 2 Ports:2 DisplayPort1 DVI-I OS Requirements:Microsoft Windows 2000 32-BIT, XP 32/64-BIT, VISTA 32/64-BIT Linux Solaris