XFX ATI Radeon HD6450 1 GB DDR3 VGA/DVI/HDMI Low Profile PCI-Express Video Card (HD645XZNH2) Chipset: Radeon HD6450 Engine Clock: 625 MHz Video Memory: 1GB DDR3 Memory Clock: 1.3 GHz Memory Interface: 64-bit Bus: PCI-Express 2.1 x16 Stream Processors: 160 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600 Connectors: VGA, DVI, HDMI Thermal: Fanless Support Microsoft Windows 7 Support ATI CrossFireX Technology Support ATI Power Play Technology Support ATI Eyefinity Technology Support AMD HD3D Technology Support AMD Accelerated Parallel Processing (APP) Technology Support Microsoft DirectX 11, Shader Model 5.0 and OpenGL 4.1. Form Factor: Low Profile Ready 400 Watt Minimum Power Supply Requirement Low Profile Design