PNY VCQFX3800ELAC-PB. Graphics processor: FX 3800, Maximum resolution: 3840 x 2400 pixels. Graphic adapter memory: 1024 MB, Graphics adapter memory type: DDR2, Memory bus: 64 bit. Interface type: PCI Express x16. Minimum system power supply: 450 W. Compatible operating systems: Microsoft Windows Vista (64-bit & 32-bit) Microsoft Windows XP (64-bit & 32-bit)