Sapphire Radeon HD6850 Toxic 1 GB DDR5 2DVI/HDMI/2x Mini DisplayPort PCI-Express Video Card 100315TXSR Chipset: Radeon HD6850, Core Clock: 820 MHz, Video Memory: 1GB DDR5 Memory Clock: 4400 MHz, Memory Interface: 256-bit, Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz, Stream Processors: 960, Max. Resolution: 2560 x 1600 Connectors: Dual DVI;HDMI;2x Mini DisplayPort, Thermal: Fansink Support Microsoft Windows 7, Support ATI CrossFireX Technology, Support ATI Eyefinity Technology, Support Dolby TrueHD and DTSHD Master Audio, Support Microsoft DirectX 11