KFA2 GeForce GTX 680 EX OC 4GB. Graphics processor: GeForce GTX 680, Maximum resolution: 2560 x 1600 pixels, Graphics processor family: NVIDIA. Graphic adapter memory: 4096 MB, Graphics adapter memory type: GDDR5-SDRAM, Memory bus: 256 bit. Interface type: PCI Express 3.0, DisplayPort version: 1.2. Shader model version: 5.0, OpenGL version: 4.2. Bundled software: Driver CD