CLUB3D Redeon X1550 Silent. Graphics processor: Radeon X1550, Maximum resolution: 2048 x 1536 pixels, Processor clock speed: 600 MHz. Graphic adapter memory: 512 MB, Graphics adapter memory type: DDR2, Memory bus: 128 bit. Interface type: PCI Express. DirectX version: 9.0c, Shader model version: 3.0, OpenGL version: 2.0. Minimum system requirements: S-video, Minimum processor: Pentium/ Athlon, Minimum RAM: 128 MB