Full Details from Amazon.com : http://www.amazon.com/gp/product/B0032CBMXC?tag=onigi-20
PowerColor ATI Radeon HD5770 1 GB DDR5 VGA/ DVI/ HDMI PCI-Express Video Card 1 GBD5-H
Chipset Radeon HD5770 Engine Clock 850 MHz Video Memory 1GB DDR5
Memory Clock 48 Ghz Memory Interface 128-bit Bus PCI-Express 21 x16
Stream Processing 800 Max Resolution 2560 x 1600
Connectors VGA DVI HDMI Thermal Fansink
Support ATI CrossFireX Technology Support ATI PowerPlay Technology
Support ATI Stream Acceleration Technology Support HDCP - High-bandwidth Digital Content Protection