The ATI Radeon HD 5870 Graphics Upgrade Kit for Mac Pro (Mid 2010 or Early 2009) from Apple is a graphics card for use in the Mid 2010 or Early 2009 version of Apple's Mac Pro desktop workstation. The card requires an available PCI Express 2.0 x16 slot for installation.
The ATI Radeon HD 5870 GPU features 1GB of GDDR5 memory for superlative performance, making it a great choice for creative, scientific, and technical applications where 3D performance is critical. The card can drive up to three displays simultaneously. It features two Mini DisplayPort outputs and one Dual-Link DVI output. Apple offers optional adapters to drive legacy VGA displays.
Note:
Due to the power requirements of this card, it cannot be used in a dual graphics card configuration. It must be the only GPU installed in your Mac Pro.
Upgrade your Mac Pro's graphics card for better performance
Compatible the Mid 2010 and Early 2009 Mac Pro from Apple
Features two Mini DisplayPort outputs and one Dual-Link DVI output
You can connect legacy VGA displays using an optional adapter cable