Geforce GTX 1080 or Radeon Pulse Sapphire RX 580 in Mac Pro

Discussion in 'Mac Pro' started by Mac Hammer Fan, Apr 18, 2019.

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Which card is the best buy?

  1. Radeon Pulse Sapphire RX 580

    18 vote(s)
    94.7%
  2. nVidia Geforce GTX 1080 superclocked

    1 vote(s)
    5.3%
  1. Mac Hammer Fan macrumors 6502a

    Mac Hammer Fan

    Joined:
    Jul 13, 2004
    Location:
    Belgium
    #1
    I am considering putting the following cards in one of my good old Mac Pros.
    I can buy the Geforce for 350 EUR, the Radeon for 220 EUR. The advantage of the latter is that I can run Mojave. The advantage of the first would be that it is considerably faster (74%) and uses less power. (165 Watt vs 185)
    Has anyone of you used these cards and can you just report your experience? Is the difference really noticeable? Which card is most recommended?
    https://gpu.userbenchmark.com/Compare/Nvidia-GTX-1080-vs-AMD-RX-580/3603vs3923
     
  2. Pentaxer macrumors member

    Pentaxer

    Joined:
    Oct 25, 2018
    Location:
    Russia
    #2
    Choose Vega 56:

    Pros: much faster than 580, Mojave.
    Cons: need some magic to be power supplied.
     
  3. Mac Hammer Fan thread starter macrumors 6502a

    Mac Hammer Fan

    Joined:
    Jul 13, 2004
    Location:
    Belgium
    #3
    Unfortunately, all my SATA ports are occupied. :( Additional internal power is not possible.
     
  4. Squuiid macrumors 65816

    Squuiid

    Joined:
    Oct 31, 2006
    #4
    Owning both of those cards I can wholeheartedly recommend that you go with a Sapphire RX580 Pulse 8GB, as recommended by Apple. It just works better, full stop.
     
  5. bsbeamer macrumors 68020

    Joined:
    Sep 19, 2012
    #5
    Own NVIDIA GTX 1080 FE 8GB and Sapphire Pulse RX 580 8GB. If you want/need Mojave, the answer is easy - RX580. If you can stay on High Sierra, and deal with NVIDIA Web Driver updates, and/or need CUDA, the answer is easy - GTX 1080. If you do not need CUDA, the RX580 is becoming more and more tuned for macOS with each update and would recommend RX580 moving forward.
     
  6. Manzanito macrumors 6502

    Manzanito

    Joined:
    Apr 9, 2010
    #6
    Depends a lot on the use case. For fcpx and the ability to use mojave, the rx 580 works really good.
     
  7. Mac Hammer Fan, Apr 18, 2019
    Last edited: Apr 18, 2019

    Mac Hammer Fan thread starter macrumors 6502a

    Mac Hammer Fan

    Joined:
    Jul 13, 2004
    Location:
    Belgium
    #7
    9 votes for the Radeon, 0 for the Geforce. There is no doubt the Radeon wins. Thanks everyone, for your usefull advice. I decided to replace my old Geforce GTX 980 by the Radeon rx 580 Pulse Sapphire. I will keep the nVidia which supports CUDA and install it in my second Mac Pro. So, I have the best of two worlds.
    The Radeon is on his way and arrives thursday. I will upgrade to Mojave 10.14.4.
     
  8. Mac Hammer Fan, Apr 27, 2019
    Last edited: Apr 27, 2019

    Mac Hammer Fan thread starter macrumors 6502a

    Mac Hammer Fan

    Joined:
    Jul 13, 2004
    Location:
    Belgium
    #8
    I finally upgraded to Mojave and AFPS. But I still have a second SSD where I boot High Sierra 10.13.6.
    Twice I got a grey screen booting in High Sierra. I used screensharing with a second computer and there the login window from the MacPro appears, so I can reboot from there. But it's annoying. Is there a solution to avoid the grey screen?
     
  9. Mac Hammer Fan thread starter macrumors 6502a

    Mac Hammer Fan

    Joined:
    Jul 13, 2004
    Location:
    Belgium
    #9
    Another problem with the Radeon RX 580 is that the fans sometimes (even in idle work) are quite noisy: 2000 rpm!
    I installed MacsFanControl
    Sensor Based value PCIE Ambient 27-55°C
    Sensor Based value PSMI Supply AC/DC Supply 2 27-55°C
    Are these settings safe?
     
  10. h9826790 macrumors G5

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #10
    IMO, that's safe.

    You may also simply use AirOut to make the PCIe and PSU fan back to normal speed.

    https://forums.macrumors.com/threads/airout-a-solution-to-the-racing-fan-bug.2143951/

    Anyway, this is not RX580's fault, lots of 3rd party GPU can cause this issue. It's a SMC bug.
     
  11. Mac Hammer Fan thread starter macrumors 6502a

    Mac Hammer Fan

    Joined:
    Jul 13, 2004
    Location:
    Belgium
    #11
    I have noticed that the manual mentions a button gaming mode/compute mode. Is there really a difference in benchmarks? I installed the Radeon RX 580 in the standard gaming mode without looking at this button.
     
  12. h9826790 macrumors G5

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #12
    For RX580 in macOS, doesn't really matter, the difference is tiny.
     

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11 April 18, 2019