XFX ATI Radeon HD6670 1 GB DDR3 VGA/DVI/HDMI PCI-Express Video Card HD667XZHF3 Chipset: Radeon HD6670; Engine Clock: 800 MHz; Video Memory: 1GB DDR3 Memory Clock: 1600 MHz; Memory Interface: 128-bit; Bus: PCI-Express 2.1 x16; Stream Processors: 480 RAMDAC: 400 MHz; Max. Resolution: 2560 x 1600; Connectors: VGA, DVI, HDMI; Thermal: Fansink Support Microsoft Windows 7; Support ATI CrossFireX Technology; Support ATI Stream Technology; Support AMD HD3D Technology; Support AMD Accelerated Parallel Processing (APP) Technology; Support ATI Eyefinity Technology; Support ATI PowerPlay Technology; Support ATI Avivo HD Technology Support HDCP - High-bandwidth Digital Content Protection; Support Microsoft DirectX 11, Shader Model 5.0 and OpenGL 4.1