Will next rMBP 13'' support a 5k monitor?

Discussion in 'MacBook Pro' started by mbenji, Sep 3, 2016.

  1. mbenji macrumors newbie

    mbenji

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    Aug 27, 2016
    #1
    Hi,
    Will the next rMBP 13'' support a 5k 5120*2880 monitor such as Dell UP2715K?

    Thanks :)
     
  2. Patcell macrumors 6502

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    #2
    It's not likely... The new 13" will probably include the Skylake U-series i5/i7 CPU with Intel Iris graphics 550, which officially supports up to 4096x2304 max.
     
  3. mbenji thread starter macrumors newbie

    mbenji

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    Aug 27, 2016
    #3
    --- Post Merged, Sep 3, 2016 ---
    Thanks a lot. Will it support 4k 3840x2160 while scaling to 2560x1440 (HiDPI)?
     
  4. Patcell macrumors 6502

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    #4
    Yup! The current model will do that just fine and at a 60hz refresh rate.
     
  5. mbenji thread starter macrumors newbie

    mbenji

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    Aug 27, 2016
    #5
    Thanks a lot Patcell :) after days of fiddling, I wasn't able to do just that with my 2014 mac mini (30hz) are you absolutely sure that's possible?

    (I've read somewhere that this is a GPU related question and not all GPUs are able to handle the 5k 5120x2880 [2560x1440 HiDPI] -> 4k 3840x2160 down scaling)
     
  6. Patcell macrumors 6502

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    #6
    Yeah, the current Mac Mini is a no go with UHD at 60hz - not possible.

    To be clear, I am not saying that the current 13' rMBP will drive a 5k display at any scaled/ downscaled resolution. According to Intel's product page, the Broadwell U series processors used in the current 13" rMBP (any configuration) will support a monitor with a native resolution of 3840x2160 at 60hz. That includes using one of Apple's scaled resolutions to simulate 2560x1440 (HIDPI). In that scenario, OS X tells the GPU to renter the desktop at 5120x2880 and then down-sample that massive image to 3840x2160. And all of this can be done at a 60hz refresh rate.

    Here is the Intel page I am getting my display support info from (see the GPU section):
    http://ark.intel.com/products/84985/Intel-Core-i5-5257U-Processor-3M-Cache-up-to-3_10-GHz
    --- Post Merged, Sep 3, 2016 ---
    On second read, I think I misread your post... To answer your question more directly: yes, the current rMBP will support 2560x1440 HIDPI to a 3840x2160 display at 60hz.
     
  7. mbenji, Sep 3, 2016
    Last edited: Sep 3, 2016

    mbenji thread starter macrumors newbie

    mbenji

    Joined:
    Aug 27, 2016
    #7
    Patcell, when no one else could answer my question you were the only one. thanks a lot :)

    Just for me in the future, how can I tell if the 2560x1440 HiDPI mode is supported on a 4k monitor for a given mac's GPU?

    One last thing, is this 2560x1440 HiDPI mode on 4k monitor is supported on the 2014 mac mini @ 30hz ?
    Just for you to know, late 2013 mac pro does not support 2560x1440 HiDPI mode on a 4k monitor (source).
     
  8. Patcell macrumors 6502

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    #8
    That article is referring to an older version of OS X if I am not mistaken... The author states that only the Nvidia Kepler cards will support 2560x1440 HIDPI, which is not the case. At least not any longer. The article is citing evidence from and Andandtech article, which was working with OS X Yosemite; newer builds of OS X fixed many of these issues. Also, the author is using a late 2013 Macbook Air, not a Mac Pro or Macbook Pro.

    To answer your question though, I am not certain if the Mac Mini will support 1440p HIDPI at 30hz or not... I do not have any direct experience with the 2014 Mac Mini. The general rule of thumb, as far as I know, is that if Apple/ Intel says that the computer/ GPU will support 3840x2160 at 60z, then it will support the scaled resolutions in HIDPI mode.

    By the way, happy to help!
     
  9. joscejrod macrumors 6502

    joscejrod

    Joined:
    May 16, 2015
    #9
    The next mbp could handle 5k 5120*2880px with skylake or kabylake. None of them support DisplayPort 1.3 (necessary to handle that resolution using SST-single stream transport). But with DisplayPort 1.2 (skylake with alpine ridge controller or kabylake with native support), it can handle 5k with MST-multiple stream transport. Rumours have said that Apple is releasing a new 5k display, so this would be the way to go. We'll see!
     

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