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RX 460 w/ El Capitan
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No, you cannot back port AMD drivers as far as I know.
As for the gpu oomph, you could buy HD7950/R9 280 or HD7970/R9 280X and use it in 2,1 trouble free (flashed or not). They are easy to flash and will give you much more performance than CPU and FSB can handle.
That's what I and many other guys with 1,1/2,1 have done.
As for the gpu oomph, you could buy HD7950/R9 280 or HD7970/R9 280X and use it in 2,1 trouble free (flashed or not). They are easy to flash and will give you much more performance than CPU and FSB can handle.
That's what I and many other guys with 1,1/2,1 have done.
Yes they work without any problems in Mac Pro. You should avoid later Sapphire ones with 2x8pin power connections as they are overclocked like crazy, but reference and close to reference ones are good to go (also, AFAIK, XFX ones don't work in cMP).
My old Gigabyte HD7950 had 1x6 and 1x8 pin connections and 8pin was taking too many current while 6 pin was almost idling, so I just bought a cable to evenly distribute current.
https://forums.macrumors.com/thread...bservations-power-draw.1966954/#post-22806575
But that was more me OCD-ing than anything else.
My old Gigabyte HD7950 had 1x6 and 1x8 pin connections and 8pin was taking too many current while 6 pin was almost idling, so I just bought a cable to evenly distribute current.
https://forums.macrumors.com/thread...bservations-power-draw.1966954/#post-22806575
But that was more me OCD-ing than anything else.