XFX ATI Radeon HD4650 1 GB DDR2 VGA/DVI/HDMI PCI-Express Video Card HD465XZNF2 Chipset: Radeon HD4650 Engine Clock: 600 MHz Video Memory: 1GB DDR2 Memory Clock: 1000 MHz Memory Interface: 128-bit Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Stream Processing Units: 320 Max. Resolution: 2560 x 1600 Connectors: VGA, DVI, HDMI Thermal: Fansink Support ATI Stream Technology Support ATI PowerPlay Technology Support ATI Avivo HD Technology Support HDCP - High-bandwidth Digital Content Protection Support Microsoft DirectX 10.1 and OpenGL 2.0 400 Watt Minimum Power Supply RequirementRoHS compliant