Zotac GeForce GTX 260. Graphics processor: GeForce GTX 260, Maximum resolution: 2560 x 1600 pixels, Processor front side bus: 576 MHz. Graphic adapter memory: 896 MB, Graphics adapter memory type: GDDR3, Memory bus: 448 bit. Interface type: PCI Express 2.0. Shader model version: 4.0, OpenGL version: 2.1