PNY GeForce 8800ULTRA PCI-E 768MB. Graphics processor: GeForce 8800 Ultra, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 648 MHz. Graphic adapter memory: 768 MB, Graphics adapter memory type: GDDR3, Memory bus: 384 bit. Interface type: PCI Express. DirectX version: 10.0, Shader model version: 4.0, OpenGL version: 2.0. Minimum system power supply: 400 W