UHD 630 - 10bit color support?

Discussion in 'Mac mini' started by strawbale, Nov 7, 2018.

  1. strawbale macrumors 6502

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    #1
    Any news on the support for 10bit color (i.e. 1 billion colors rather than 16.7 million colors)?
    (like all new iMacs do, since 2015, and MBPs, since 2016, for external monitors)
     
  2. Stephen.R macrumors 65816

    Stephen.R

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    #2
    I believe the newer Intel TB3 controllers support DP1.4, which supports it, as I understand it. Not sure if the HDMI port would though.
     
  3. strawbale thread starter macrumors 6502

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    #3
    10-bit color support does not depend on the port, but on the (i)GPU and driver. On Windows you'd need a workstation dGPU, but on macOS even iGPUs like the iris plus 540/550/640/650/655 in the 2016/17/18 MBP 13" support it. Hence my hope the UHD 630 on macOS will do too.
     
  4. Stephen.R macrumors 65816

    Stephen.R

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    #4
    Surely it depends on both - more colour depth = more bandwidth required.
     
  5. strawbale thread starter macrumors 6502

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    #5
    True to a certain extend, I think, but DP1.2 is already enough for that
     
  6. the future macrumors 65816

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    #6
    It is a little strange that the Mini tech specs only specify the resolution but not the colour depth for attachable displays … usually this information is included in the tech specs of Macs.
     
  7. WMU328 macrumors newbie

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    #7
    Agreed. Which is why I have kept asking. I wonder if a eGPU would support it, rather than the UHD 630.
     
  8. strawbale thread starter macrumors 6502

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    #8
    that's why I hope(d) someone has by now actually hooked up a 10-bit color capable monitor to test it ...

    edit: still on the phone with Apple support about it
     
  9. rmdeluca macrumors 6502

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    Oct 30, 2018
    #9
    Ok, from what I can tell, my 2018 Mini is outputting 10-bit color:
    upload_2018-11-7_16-59-30.png
    Granted, my monitor only does dithered 10-bit and not true 10-bit, but it appears to be working properly when I open Netflix's 10-bit test pattern (go to "Season" 4, episode 1):

    https://www.netflix.com/watch/80018593
     

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  10. strawbale thread starter macrumors 6502

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    #10
    Great! I got a similar confirmation from Dr. Stealth. That makes the MM2018 i3 by far the cheapest computer that supports 10-bit color, i.e. 1 billion colors in stead of 'just' 16.7 million colors for 8-bit.
    Apple's Photos and Preview support it too, so you don't even need Photoshop.
    Windows PCs need workstation GPUs for 10-bit color...
     
  11. strawbale thread starter macrumors 6502

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    #11
    BTW, Gimp 2.10 can do 10-bit too now (and is free).
     

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10 November 7, 2018