XpertVision GTX 480. Graphics processor: GeForce GTX 480, Maximum resolution: 2560 x 1600 pixels. Graphic adapter memory: 1536 MB, Graphics adapter memory type: GDDR5, Memory bus: 384 bit. Interface type: PCI Express 2.0. OpenGL version: 3.2, HDMI version: 1.3a. Compatible operating systems: Microsoft Windows 7