Zotac GeForce 8600 GTS 512Mb DVI. Graphics processor: GeForce 8600 GTS, Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 675 MHz. Graphics adapter memory type: GDDR3, Memory bus: 128 bit, Memory clock speed: 2000 MHz. Shader model version: 4.0, OpenGL version: 2.0