MSI ATI Radeon HD6790 1 GB DDR5 2DVI/HDMI/2x Mini DisplayPort PCI-Express Video Card R6790-2PM2D1GD5 Chipset: Radeon HD6790 Engine Clock: 840 MHz Video Memory: 1GB DDR5 Memory Clock: 4200 MHz Memory Interface: 256-bit Bus: PCI-Express 2.1 x16 RAMDAC: 400 MHz Max. Resolution: 1920 x 1200 Connectors: Dual DVI; HDMI; 2x Mini DisplayPort Thermal: Fansink Support Microsoft Windows 7 Support AMD Eyefinity Technology Support Blu-ray and HD DVD Support HDCP - High-bandwidth Digital Content Protection Support Microsoft DirectX 11 and OpenGL 4.0