Sapphire Radeon X850 XT. Graphics processor: Radeon X850, Maximum resolution: 2048 x 1536 pixels, Graphics adapter RAMDAC: 400 MHz. Graphic adapter memory: 256 MB, Graphics adapter memory type: GDDR3, Memory bus: 256 bit. Interface type: PCI Express. Minimum processor: Intel Pentium 4 / AMD Athlon, Minimum RAM: 256 MB