Sparkle Technology SF-PX96GT512D3-HP. Graphics processor: GeForce 9600 GT, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 650 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. Minimum system requirements: CD-ROM/DVD-ROM