XFX ATI Radeon HD 5670 1GB DDR3 VGA/DVI/HDMI PCI-Express Video Card HD567XZNL3 Chipset: Radeon HD 5670 Engine Clock: 775 MHz Video Memory: 1GB DDR3 Memory Clock: 1.6 GHz Memory Interface: 128-bit Bus: PCI-Express 2.1 x16 RAMDAC: 400 MHz Stream Processors: 400 Max. Resolution: 2560 x 1600 Connectors: VGA, DVI, HDMI Thermal: Fansink Support Windows XP/Vista/7 Support Microsoft DirectX 11, Shader Model 5.0 and OpenGL 3.2 Support ATI PowerPlay Technology Support ATI Radeon Stream Technology Support ATI Radeon CrossFireX Technology 400 Watts Minimum Power Supply Requirement