Retina iMac (4k/5k) owners can greatly improve the graphics performance

Discussion in 'iMac' started by sakabaro, Feb 15, 2017.

  1. sakabaro macrumors regular

    Joined:
    Feb 24, 2015
    #1
    Retina iMac (4k/5k) owners can greatly improve the graphics performance of many applications (including REAPER) by setting the color profile (in System Preferences, Displays, Color tab) to "Generic RGB" or "Adobe RGB."

    Ref: http://1014.org/?article=697
     
  2. flightdog macrumors newbie

    Joined:
    Feb 14, 2017
    #2
    The settings makes no difference at my iMac Late 201 5k.
     
  3. sakabaro thread starter macrumors regular

    Joined:
    Feb 24, 2015
    #3
    Apparently, you have to restart the iMac to see a difference. Didn't see a big diff. as well.
     
  4. xgman macrumors 601

    xgman

    Joined:
    Aug 6, 2007
    #4
    Does this change the graphics "quality" at all? I mean aside from any performance gains. I'd rather have the best quality over performance.
     
  5. sakabaro thread starter macrumors regular

    Joined:
    Feb 24, 2015
    #5
    Yeah, you are back to 8 bit from 10 bit. According to the author, ir'a reducing a lot UI lag but I don't see it.
     
  6. apppen1, Feb 16, 2017
    Last edited: Feb 16, 2017

    apppen1 macrumors regular

    apppen1

    Joined:
    Oct 2, 2016
    #6
    No difference here aswell.

    Edit: After trying for longer, it does work and makes a small difference using the Generic RGB profile.
     
  7. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #7
    It will certainly lead to inaccurate color if you're using graphics applications like Photoshop.
     
  8. larzy macrumors regular

    larzy

    Joined:
    Nov 16, 2008
    Location:
    Denmark
    #8
    Just a follow up - just received my new 27 iMac, and noticed when the machine first booted into Mac OS Sierra, that the colors were really strong and powerful, and then immediately it got a bit more muted. I tried going through the different color profiles under settings, and noticed that instead of the default "iMac" profile, the generic RGB was really more powerful, had deeper blacks and stronger colors.

    Reminds me a little of Samsungs AMOLED tech.

    Any notes on using this profile instead of the iMac one? I assume the iMac is more accurate? And I guess I would quickly adjust to it - just asking because I noticed some automatic change when starting the machine and when it went into the operation system. Coming from a late 2015, just never changed the setting.
     

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