PowerColor Radeon HD 7850 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card AX7850 2GBD5-DH Chipset: AMD Radeon HD 7850 860MHz Memory: GDDR5 1200MHz (4.8Gbps) 2GB Ports: 1 x HDMI, 1 x DisplayPort, 1 x DVI RAMDAC: 400 MHz Power Connector: 6 Pin System Requirements: Minimum of a 500 Watt power supply.