Diamond Multimedia Viper X1650PRO. Graphics processor: Radeon X1650 Pro, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 600 MHz. Graphic adapter memory: 512 MB, Graphics adapter memory type: GDDR3, Memory bus: 128 bit. Interface type: PCI Express x16. DirectX version: 9.0, Shader model version: 3.0, OpenGL version: 2.0. Minimum processor: Intel Pentium IV, AMD Athlon, Athlon 64, Athlon XP, Minimum RAM: 512 MB, Minimum hard disk space: 480 MB