Jaton VIDEO-558PCI-QUAD. Graphics processor: GeForce 8400 GS, Maximum resolution: 2048 x 1536 pixels, Graphics processor family: NVIDIA. Graphic adapter memory: 1024 MB, Graphics adapter memory type: DDR2, Memory bus: 64 bit. Interface type: PCI. Minimum processor: Intel Pentium P4, Minimum hard disk space: 200 MB, Minimum system power supply: 400 W. Compatible operating systems: Windows 7/ Vista / XP