CLUB3D X1900RX 256MB. Graphics processor: Radeon X1900, Maximum resolution: 2048 x 1536 pixels, Processor clock speed: 575 MHz. Graphic adapter memory: 256 MB, Graphics adapter memory type: GDDR3, Memory bus: 256 bit. Interface type: PCI Express. DirectX version: 9.0, Shader model version: 3.0, OpenGL version: 2.0. Power requirements: 450 Watt Power Supply, Minimum processor: Pentium / Athlon, Minimum RAM: 128 MB