Mac OS X 10.7.3 to support AMD "Tahiti" graphics cards
Scheduled to arrive in time for Intel's Sandy Bridge Xeon, which is expected to arrive in the first quarter of 2012, AMD's high-end Tahiti graphics cards use 28nm chips and replace the existing HD 6970 and HD 6950.
The cards are expected to be used in a forthcoming update to Apple's professional-level Mac Pro, which hasn't seen a proper product update for over year. Indeed, the mid-2010 Mac Pro 5,1 still ships with the ATI Radeon HD 5770, so an update is long overdue.
It has, however, been rumoured for a while that the Mac Pro may be due to be axed as Apple's bottomline continues to be buoyed by strong notebook, tablet and iPhone sales, and becomes less of a desktop computer manufacturer and more of a mobile Internet device company. With the advent of thunderbolt, which provides as much data bandwidth as PCI cards, it would seem logical that the Mac Pro eventually gets phased out, especially with iMacs being adopted by professionals instead of costly Mac Pro's.
Of course, if you're still desperate for a powerful and cutting-edge Mac you could always hack your custom built PC ;o)