MacBook 2016 compatible with LG 4K monitor?

Discussion in 'MacBook' started by lbjsong, Nov 12, 2016.

  1. lbjsong macrumors regular

    Joined:
    Jun 8, 2009
    #1
    I wonder its graphic card is good enough for one 4k monitor.
     
  2. SumNextGai macrumors newbie

    Joined:
    Oct 31, 2016
    Location:
    Ontario, CA
    #2
    It'll work, but you'll only get 30Hz instead of the typical 60Hz, meaning fast moving images/videos would look sluggish.
     
  3. Precursor macrumors 6502

    Precursor

    Joined:
    Sep 29, 2015
    Location:
    Istanbul
    #3
    How so? rMB already gets 4k@60Hz with LG 27UD88 which also offers usb-c connection. Where did you get this 30Hz from?
     
  4. Sheza macrumors 65816

    Sheza

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    Aug 14, 2010
    Location:
    Croydon & London At The Same Time
  5. SumNextGai macrumors newbie

    Joined:
    Oct 31, 2016
    Location:
    Ontario, CA
    #6
    https://support.apple.com/en-us/HT206587

    At the HDMI section, it says;

    "MacBook (Retina, 12-inch, Early 2015) and later supports these resolutions and refresh rates over HDMI 1.4b using the USB-C Digital AV Multiport Adapter.

    • 3840x2160 at 30 Hz refresh rate
    • 4096x2160 at 24 Hz refresh rate (mirroring is not supported at this resolution)"
     
  6. zhenya macrumors 603

    zhenya

    Joined:
    Jan 6, 2005
    #7
    That's a limitation of the HDMI spec used in the adapter. When connected via USB-C, 4k/60hz is supported. Any USB ports connected over the same cable will drop to 2.0 speeds.
     
  7. thekev macrumors 604

    thekev

    Joined:
    Aug 5, 2010
    #8
    Use a display with a displayport or usbc connection. hdmi is not appropriate for a computer display.
     
  8. Rapp macrumors member

    Rapp

    Joined:
    Apr 1, 2011
    Location:
    England
    #9
    The new macOS update 10.12.1 allows 4k @ 60Hz, I have the LG 27UD88 and using it now. It supports mirroring or as a 2nd display with the MacBook screen.
     

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