MSI R6950 Twin Frozr II Radeon HD 6950 2 GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity Chipset: Radeon HD6950 Engine Clock: 800 MHz Video Memory: 2GB DDR5 Memory Clock: 5000 MHz Memory Interface: 256-bit Bus: PCI-Express 2.1 x16 RAMDAC: 400 MHz Max. Resolution: 1920 x 1200