MSI ATI Radeon HD6450 1 GB DDR3 VGA/DVI/HDMI Low Profile PCI-Express Video Card R6450-MD1GD3/LP Chipset: Radeon HD6450 Engine Clock: 625 MHz Video Memory: 1GB DDR3 Memory Clock: 1333 MHz Memory Interface: 64-bit Bus: PCI-Express 2.1 x16 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600 Connectors: DVI; VGA; HDMI Thermal: Fansink Support Microsoft Windows 7 Support ATI CrossFireX Technology Support AMD Stream Technology Support Blu-ray and HD DVD Support HDCP - High-bandwidth Digital Content Protection.Interface:PCI Express x16 2.1 Support Microsoft DirectX 11 and OpenGL 4.1 Low Profile Design