ASUS Extreme N7900GTX. Maximum resolution: 2048 x 1536 pixels, Processor frequency: 650 MHz, Graphics adapter RAMDAC: 400 MHz. Graphics adapter memory type: GDDR3, Memory bus: 256 bit, Memory clock speed: 1600 MHz. DirectX version: 9.0, Shader model version: 3.0, OpenGL version: 2.0. Minimum system requirements: CD-ROM. Bundled software: Asus Drivers & Utilities