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macrumors regular
Original poster
Nov 9, 2007
as the title says im looking to upgrade my mac pro 1,1 from its 7300 gt to something that supports yosemite and is the last gpu upgrade ill do to it for the rest of its life.

will a 7970 work after being flashed in a mac pro 1,1. i ask because i see a lot of people recommend a 5870 or older card for mac pro 1,1 and i found a 7970 for a good price but i didnt want to waste my money if it will not work.

thanks in advanced

Mr. Zarniwoop

macrumors 6502a
Jun 9, 2005
will a 7970 work after being flashed in a mac pro 1,1

Yes, worth noting from the 2006/2007 Mac Pro (1,1/2,1) and OS X Yosemite thread:

Note that if for some reason you still need to boot OS X Lion or early Mountain Lion versions that all AMD Tahiti-based cards (7950/7970 and R9 280/280X) are only properly supported by OS X 10.8.3 or higher, although there are OS X 10.7.5-10.8.2 AMD Tahiti graphics card device driver kernel extensions that may work in a 2006/2007 Mac Pro when used with tiamo's boot loader.


Nov 17, 2008
Hollywood, CA
The 10.7.5 drivers were on a disk from Saphire. They didn't work on 1,1 at the time, 32 bit version broken.

Great cards for 1,1 if running later OS's
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