Asus ATI Radeon HD 5770 1 GB GDDR5 2DVI PCI-Express Video Card EAH5770 CUCORE/G/2DI/1GD5 Graphics Engine: ATI Radeon HD 5770 graphics Video Memory: 1 GB GDDR5 Engine Clock: 850 MHz Memory Clock: 4.8 GHz (1.2GHz GDDR5) Memory Interface: 128 bit DVI Max.Resolution: 2560 * 1600 Bus Standard: PCI Express 2.1 DVI Output: DVI-I (Dual Link) x 2 (one via HDMI-to-DVI adapter) HDCP compliant: yes HDMI Output: yes D-Sub Output: yes Software Bundied: ASUS Utilities & Driver