Zotac GeForce 9800 GTX AMP!. Graphics processor: GeForce 9800 GTX, Maximum resolution: 2560 x 1600 pixels, Processor front side bus: 750 MHz. Graphic adapter memory: 512 MB, Graphics adapter memory type: GDDR3, Memory bus: 256 bit. Interface type: PCI Express 2.0. Shader model version: 4.0, OpenGL version: 2.1