CLUB3D Radeon X1800 CFE, GDDR3, 256 bit, 1500 MHz, 2048 x 1536 pixels CLUB3D Radeon X1800 CFE. Processor frequency: 625 MHz. Graphics card memory type: GDDR3, Memory bus: 256 bit, Memory clock speed: 1500 MHz. Maximum resolution: 2048 x 1536 pixels. DirectX version: 9.0, OpenGL version: 2.0, Dual Link DVI