Zotac GeForce 8800 GTS 320MB. Graphics processor: GeForce 8600 GTS, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 500 MHz. Graphic adapter memory: 320 MB, Graphics adapter memory type: GDDR3, Memory bus: 320 bit. Interface type: PCI Express. Shader model version: 4.0, OpenGL version: 2.0