2010 mac pro tower with 3 33ghz 12 core xeon x5680 with 96gb of 1333mhz ddr3 ecc sdram running macos mojave 10 14 6.
Sapphire radeon rx 580 mac.
Buy one of the flashed gpus from website mentioned in the apple forum.
I m interested in seeing the solution because i m doing a 4 1 5 1 beast this summer hopefully i was planning on using a vega or the 580 so would.
The rx580 sapphire stacks up well against a nvidia rtx 2070 2080 or 2080ti if you have the dosh to throw at these and geforce gtx1060 at this resolution the gtx1060 fighting hard to keep up and nosing ahead in some games but stepping up to 1440 it taps out by more than a fraction on this ryzen 5 platform and incidentally the gtx1060 seems to have a rather high failure rate.
Let me know if you find anything.
My 2nd channel learn how to code.
Therefore this how to works the same way for rx 580 and rx 570.
Sapphire radeon pulse rx 580 8gb gddr5 dual hdmi dvi d dual dp oc w backplate uefi pci e graphics card.
Gpus were installed in x16 slot one.
Try using the mac compatible sapphire pulse rx 580 unless that s the one you have 3.
February 2017 update.
I received an rx 580 test unit from amd and can confirm it has the same pci id 67df as the rx 480.