Anyone driving multiple 4K/5K monitors with 15-inch MBP 2016 450/455 GPU?

Discussion in 'MacBook Pro' started by pubmsu, Jan 27, 2017.

  1. pubmsu, Jan 27, 2017
    Last edited: Jan 27, 2017

    pubmsu macrumors newbie

    Joined:
    Dec 9, 2014
    #1
    Hi,

    Just wondering whether there's any lag or slowness experienced when running more than one 4K/5K monitors with 450/455 GPU.

    460 seems to have no lag at all driving two LG 5K monitors (as demo'ed in couple YouTube videos).

    I am planning to use one LG 5K and one 4K (LG 27UD88), and sometimes a 12.9-inch iPad Pro connected via Duet.

    I don't want to wait to get 460 and if 450 itself can do the job, then why pay more?

    Thanks!
     
  2. jeepik macrumors regular

    Joined:
    Oct 2, 2009
    #2

    I have the top end 2016 MBP with the 460 and its driving two LG 5K monitors, I have lag every single time in Mission Control.
     
  3. theitsage macrumors 6502a

    Joined:
    Aug 28, 2005
    #3
    I'm not trolling. Many are curious how your setup would work with video editing as Apple suggested in this photo?

    apple-macbook-pro.png.jpeg
     
  4. Sanpete macrumors 68020

    Joined:
    Nov 17, 2016
    Location:
    Utah
    #4
    Some people report lag in Mission Control, among other places, with no external monitors.
     
  5. pubmsu thread starter macrumors newbie

    Joined:
    Dec 9, 2014
    #5
    Mission Control lag seems rather common and independent of using multiple monitors.
     
  6. mcomp112 macrumors regular

    Joined:
    Jan 1, 2017
    #6
    I've used two 4K monitors (2 LG 27UD68's) with a 455. I've noticed no difference (everything was smooth fyi) vs when using one 4K monitor but I've only used it a couple times at my friend's office space so I can't say definitively yet if there's an overall difference in performance.

    And, yes, Mission Control sometimes lags even when my laptop isn't connected to any monitor (seems more of a MacOS issue).
     
  7. pubmsu thread starter macrumors newbie

    Joined:
    Dec 9, 2014
    #7
    Thanks mcopm112, that is reassuring... I am planning to use one 5K and one 4K.
     
  8. jeepik macrumors regular

    Joined:
    Oct 2, 2009
    #8
    Sorry can help you, i don't do video editing.

    I do have about 5 desktops on each monitor and about 15 total windows open at a time on each monitor..this identical setup did not lag with the same laptop and two thunderbolt displays
     

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