Sapphire Radeon HD5670 1 GB DDR3 VGA/DVI/HDMI PCI-Express Video Card 100289VGAL Chipset: Radeon HD5670 Core Clock: 775 MHz Video Memory: 1GB DDR3 Memory Clock: 1600 MHz Memory Interface: 128-bit Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Stream Processors: 400 Max. Resolution: 2560x1600 Connectors: VGA, DVI, HDMI Thermal: Fan sink Support Microsoft Windows 7 Support ATI CrossFireX Technology Support ATI Avivo HD Technology Support ATI Eyefinity Technology Chipset: Radeon HD5670 Core Clock: 775 MHz Video Memory: 1GB DDR3 Memory Clock: 1600 MHz Memory Interface: 128-bit Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Stream Processors: 400 Max. Resolution: 2560x1600 Connectors: VGA, DVI, HDMI Thermal: Fan sink Support Microsoft Windows 7 Support ATI CrossFireX Technology Support ATI Avivo HD Technology Support ATI Eyefinity Technology Support ATI Stream Technology Support ATI PowerPlay Technology Support ATI Dolby TrueHD and DTSHD Master Audio Technology Support Microsoft DirectX 11, Shader Model 4.1 and OpenGL 3.1/3.2