Use Nvidia GeF 6600GT GPU Equipped with 128MB 128-bit high-speech DDR memory GPU core clock: 500MHz Max. resolution: 2048 x 1536 @ 85Hz Bus standard: PCI-E 16X VGA-out port: standard 15-pin D-sub, max. resolution is 2048 x 1536@85Hz TV-out port: S-VHS and composite, max. resolution is 1024 x 768 DVI: max. resolution is 1600 x 1200