Chipset:	ATI Radeon HD 4870
Chip Clock:	750MHz
DAC Speed:	2 x 400MHz
Memory (Maximum):	1024MB 900MHz GDDR5
Memory Width:	256bit
Video Card Bus Type:	PCI Express 2.0 x16
DVI Port:	2 x DVI­I
HDMI Port:	1 x HDMI (with HDCP)
VGA Port:	1 x 15­pin D­Sub
TV Out:	1 x TV­Out
Integrated TV Resolution (Max):	1024 x 768 Pixels
Supported Resolutions:	3D Graphics Resolution: 2560x1600
Video Standards:	Microsoft DirectX 10.1 • OpenGL 2.0
System Requirements:	PCI Express based PC is required with one X16 lane graphics slot available on the motherboard • 500 Watt or greater power supply with two 75W 6­pin PCI Express power connectors recommended (600 Watt and four 6­pin connectors for ATI CrossFireX technology in dual mode)â€� • Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products • 1GB of system memory • Installation software requires CD­ROM drive • DVD playback requires DVD drive • Blu­ray / HD DVD playback requires Blu­ray / HD DVD drive • For a complete ATI CrossFireX system, a second ATI Radeon HD 4870 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per board (included) are required