XFX AMD Radeon HD 6950 800M 2 GB DDR5 Dual MiniDP HDMI Dual DVI PCI-E Video Card HD695XCNFC PCI Express 2.1 x16 GPU: Radeon HD 6950 Core Clock: 800MHz Memory Size: 2GB Effective Memory Clock: 1250MHz (5.0 Gbps) Memory Type: GDDR5 Memory Interface: 256-bit Minimum of a 500 Watt power supply.