CLUB3D Radeon HD5870 1024 MB 256 BIT PCI-E. Graphics processor: Radeon HD5870, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 850 MHz. Graphic adapter memory: 1024 MB, Graphics adapter memory type: GDDR5, Memory bus: 256 bit. Interface type: PCI Express 2.1. Shader model version: 5.0, OpenGL version: 3.1. Depth: 98 mm, Height: 38 mm, Width: 280 mm