Our back room gurus tested the NVIDIA GeForce GT 120 and the ATI Radeon HD 4870 graphics cards from the early 2009 Mac Pro in the 800MHz and 667MHz Mac Pro models with varying success. The quick results are: GT120 functions, in both ports, in 800MHz Mac Pro.
Mac Pro ‘800MHz Memory Bus Models:
4870 – Works A-OK via its DVI port. No-go via the miniDisplay Port.
GT120 – Works like a champ with both DisplayPort and DVI Port.
Mac Pro ‘667MHZ Memory Bus Models:
No go with either of Video Cards from the new Mac Pros.
We’ll have more details later, but there’s a preliminary first look summary. If you have an 800MHz Mac Pro now – the GT120 ought to become a nice option all around… And the 4870 maybe too for those wanting that super video performance while not needing it to support two displays.
Update note 3/17/09 should note that testing was done under OS X 10.5.6 and was done with a Mini DisplayPort straight into a new display.UPDATE 8/27/10 We tested the Radeon 5870 and 5770 graphics cards with all model year (2006-2010) Mac Pros…see the results at this revealing post!