1,3 MacBook running external Monitor @ 60hz

Discussion in 'MacBook' started by WillO95, Apr 27, 2016.

  1. WillO95 macrumors member

    Dec 15, 2014
    Hello ,

    Maybe someone can answer this question for me, might sound like a stupid question, but in the Apple Store they couldn't give me a answer!

    I am planning to buy the built-to-order 1,3 2016 MacBook, but there is one thing I need to know before purchasing. I currently use a 2013 Retina MacBook Pro 15 at home in clamshell mode plugged into a 34" Ultra-Wide monitor. The MBPR will run 2560x1080 at 60hz no problem. (Note this is through HDMI)

    So will the MacBook do the same? I know they say the MacBook will run up to 4K resolutions at 30hz, but some forums seem to suggest that it can handle 60hz at lower resolutions. So considering it is technically only 1080p resolution, can I get the screen to run at 60hz instead of 30hz? Or do I just quit while I'm ahead.

    In the store they told me to buy anyway and just return if it doesn't work, but I have to purchase online for a built-to-order, and don't have the time to faff with posting stuff back, so is there someone who can test this for me?

    Monitor is a LG34UM57-P

    Thanks in advance!
    --- Post Merged, Apr 27, 2016 ---
    Sorry that this appeared twice! Wifi sucks so the iPad reset and didn't realise it had posted!
  2. keviig macrumors 6502

    Jun 7, 2012
    Seeing as HDMI 1.4 supports 1440p (2560x1440) at 60hz i couldn't imagine the rMB having any issue running 2560x1080 at 60hz.
  3. WillO95 thread starter macrumors member

    Dec 15, 2014
    Thanks for the input, makes sense. Shame that on the website apple are very vague about the specs!
  4. keviig macrumors 6502

    Jun 7, 2012
    They are being very vague indeed. They state it'll only do 4k@30hz, while also stating "Native DisplayPort 1.2 video output". Now DisplayPort 1.2 actually supports 4k@60hz so they are just confusing their customers at this point. If 4k@30hz is what it's limited to, that would equal to DisplayPort 1.1 spec, not 1.2.

    However, 4k@30hz still requires a lot more bandwidth than 2560x1080@60hz so you should be good either way!
  5. zhenya macrumors 603


    Jan 6, 2005
    This page verifies the specifications of the usb-c digital AV adapter in more detail. https://support.apple.com/en-us/HT204360


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