Gigabyte GV-RX155256D-RH ATI Radeon™ X1550 GPU. Graphics processor: Radeon X1550, Maximum resolution: 2560 x 1600 pixels, Parallel processing technology support: CrossFire. Graphic adapter memory: 256 MB, Graphics adapter memory type: DDR2, Memory bus: 128 bit. Interface type: PCI Express. DirectX version: 9.0c, OpenGL version: 2.0