PowerColor HD 2600 PRO 512MB GDDR2 PCI-E. Graphics processor: Radeon HD2600, Maximum resolution: 2560 x 1600 pixels, Parallel processing technology support: CrossFire. Graphic adapter memory: 512 MB, Graphics adapter memory type: DDR2, Memory bus: 128 bit. Interface type: PCI Express. Shader model version: 4.0, OpenGL version: 2.0