4K Display and Retina MacBook Pro 13"

Discussion in 'MacBook Pro' started by w0rd3r, Jun 4, 2014.

  1. twon2014, Feb 21, 2015
    Last edited: Feb 21, 2015

    twon2014 macrumors newbie

    Feb 19, 2015
    13" rMBP + LG 31MU97-B

    this LG 31MU97-B has 4096 x 2160.

    Can 13" rMBP can have 50HZ on 4096 x 2160?????????

    I saw the real thing. This monitor is awesome.....However, If I can't get 50z on 4096 x 2160....what's the point of buying, right???

    Anyone knows?????
  2. aksonov macrumors newbie

    Feb 4, 2015
    Looks like Dell has another width/height ratio, because it has 3840 x 2160.

  3. twon2014 macrumors newbie

    Feb 19, 2015
    don't understand what you are saying.

    If 13" can support 4096x2160 @ 50hz.......I will buy this LG right now.
  4. flr macrumors member

    Sep 30, 2013
    Which version of SwitchResX are you using? The latest version is now 4.5.0 and they say it should be compatible with Yosemite. But the reality might be different.

    Has anybody else problems with the P2415Q monitor under Yosemite? I would like to get the same monitor but it must be sure work with Yosemite.
  5. flr macrumors member

    Sep 30, 2013
    Do you use Yosimite? And are you experiencing any problems?
  6. MrBlond macrumors newbie

    Jan 30, 2015

    Hi jonisign

    Have the same Samsung display UD590 and I've been looking very actively how to may this display work in 3840X2160 in 52Hz. You are the only one that was to prove that it is possible doing it with a 13 MBP.

    My machine is a 13 MBP mid 2014 i7 Intel Iris 1536 MB. I'm stuck right now doing 3840X2160 in 30Hz via HDMI. I bought all the cable to try different way I have the miniDP and the MiniDP adaptor as well. But I can figure out the switch rez part. I tried as well Picture By Picture mode which was not successful for me.

    Would you be kind enough to help me out with couple of questions:

    -Which cable you are using to achieve the 3840X2160 in 52Hz?
    -What are the steps in switch rez to achieve the 3840X2160 in 52Hz?
    -Last what are the setting in in switch rez that allow the 3840X2160 in 52Hz?

    jonisign, thank you very much for your help in this long quest of my search to achieve this goal.

  7. twon2014, Feb 28, 2015
    Last edited: Feb 28, 2015

    twon2014 macrumors newbie

    Feb 19, 2015
    NOT working

    It's working ok.
    I get 3840 x 2160 @ 52HZ.

    I just got LG LG 31MU97-B. Although I am not maximizing its capability that is 4096 X 2160........., I am ok with 3840 x 2160 @ 52 HZ.
  8. peterskim macrumors newbie

    Jan 9, 2004
    Hey guys, thanks so much for all the helpful posts! I started freaking out when I saw the blurry text immediately after plugging in my Dell P2715Q into my late 2013 13" retina MacBook Pro. But I finally found this thread, got SwitchResX, set the refresh rate to 52hz and got it working!
  9. jonisign macrumors regular

    Jul 7, 2007

    Sorry for the late reply, a few things

    - 52 Hz, 4K is ONLY possible over Thunderbolt 2/Displayport, not HDMI
    - I'm using this cable: http://www.amazon.com/gp/product/B00C7RJQPY
    - To achieve 52 Hz, you need to set a custom resolution with the settings in the attached file in switchesX. Make sure that you're getting a 450 MHz pixel clock. Input the settings and restart!

    Attached Files:

  10. Danielcv74 macrumors newbie

    Jan 8, 2015

    how about the new Macbook Pro 13 Inch Retina (2015) which was presented by Apple some hours ago ?
    It says it has an IRIS 6100 Graphics card - does this one support 60 Hz "out of the box" with 3840x2160 pixels ?
    In the technical data it says it does support that resolution, but it doesn´t say anything about the frequency, except with HDMI, where it is 30 Hz, but I would like to know if it supports the 60 Hz at Thunderbolt port ?

    Any ideas / information would be appreciated.

    Best regards,
  11. hfjallemark macrumors newbie

    Mar 9, 2015
    I too would like to know this. In this article it says:

    Can somebody confirm?
  12. Mais78 macrumors 6502

    Dec 1, 2014
    That's correct, Intel 5th gen CPUs with integrated GPU support 4k at 60Hz
  13. nagual, Mar 10, 2015
    Last edited: Mar 10, 2015

    nagual macrumors member

    Apr 4, 2012
    How to comply with this then?

    View Specs:


    Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on up to two external displays, both at millions of colors

    HDMI video output

    Support for 1080p resolution at up to 60Hz
    Support for 3840-by-2160 resolution at 30Hz
    Support for 4096-by-2160 resolution at 24Hz
  14. Mais78 macrumors 6502

    Dec 1, 2014
    The answer is simple, to get 60hz on 4k you need to use the displayport. HDMI at the moment only does 30hz
  15. Hieveryone macrumors 68040

    Apr 11, 2014
    Are you serious! That stand for your MacBook is AWESOME. Where'd you get it?

    I have a BookArc, but I REALLY want the stand you have...:)
  16. nagual macrumors member

    Apr 4, 2012
    Thanks for that, another burning question if I may - What other devices are able to output 4k @ 60 beside Mac Pro and iMac?
  17. Mais78 macrumors 6502

    Dec 1, 2014
    Not sure all the iMacs can output at 60hz, not the base version with Intel HD5000 graphics. MacBook Pro 15 also can. And pretty sure the new Mac Air with HD 6000. Basically pretty much everything but the Mac Mini. Which is the one I got :( I am running a 4k at 30hz and to be honest I can very hardly tell the difference (I use it for photo editing and office).
  18. nagual macrumors member

    Apr 4, 2012
    I have MacBook Air mid 2012 with HD4000 and of course I am out of anything but 1080p. Now I need desperately something that can output 4K @ 60 hz since I have Sony 4K and Denon receiver 4K both with up-scaling capability.
  19. yjchua95 macrumors 604

    Apr 23, 2011
    GVA, KUL, MEL (current), ZQN
    The new rMBP with Iris 6100 can output 4K @ 60 Hz.
  20. Mais78 macrumors 6502

    Dec 1, 2014
    Apple has updated this page and I might be partially wrong

    New Air is listed as supporting 4k BUT not listed under MST so no 60hz?
  21. yjchua95 macrumors 604

    Apr 23, 2011
    GVA, KUL, MEL (current), ZQN
    Apple's specs aren't accurate.

    Use Intel's specs.
  22. chaoscarrot macrumors member

    Mar 11, 2015
    I just picked up a 2015 rMBP. I wanted to confirm something:

    If I get a 4k monitor, I will just need a 4k thunderbolt -> mini displayport to run 4k at 60hz, correct?
  23. xtracripsy macrumors newbie

    Jul 31, 2014
    You'd be looking for a Mini DisplayPort to DisplayPort 1.2 cable. Something like this. That's a pretty good price actually, I might pick one up for my rMBP currently waiting to be shipped :)
  24. chaoscarrot macrumors member

    Mar 11, 2015
    Thanks so much! I didn't realize that Mini Displayport cables can go into the thunderbolt port. Lol
  25. Mais78 macrumors 6502

    Dec 1, 2014
    I got a MBP 2015 but I cannot get 60hz on my Dell UP2414Q (and Yes, I enabled DP1.2), anyone got any idea?

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