PNY GeForce 9 9400GT PCI-E 512MB. Graphics processor: GeForce 9400 GT, Maximum resolution: 2560 x 1600 pixels. Graphic adapter memory: 512 MB, Graphics adapter memory type: DDR2, Memory bus: 128 bit. Interface type: PCI Express x16. Minimum RAM: 512 MB, Minimum hard disk space: 100 MB. Compatible operating systems: Windows 2000, XP, Vista