Gainward HD 3850 1024MB. Graphics processor: Radeon HD3850, Maximum resolution: 2560 x 1600 pixels, Graphics adapter RAMDAC: 400 MHz. Graphic adapter memory: 1024 MB, Graphics adapter memory type: DDR2, Memory bus: 256 bit. Interface type: PCI Express 2.0. Cooling type: active. DirectX version: 10.1, Shader model version: 4.1