Target Display Mode on future iMac?

Discussion in 'iMac' started by canny, Jun 22, 2016.

  1. canny macrumors regular

    canny

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    Jun 11, 2009
    #1
  2. maflynn Moderator

    maflynn

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    #2
    There's a chance, but we don't know if its a remote chance or a very good chance.
     
  3. redheeler macrumors 603

    redheeler

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    Oct 17, 2014
    #3
    Not many people get an iMac just to use it as a screen for another Mac, and this feature is not a high priority for Apple. Yes there is a chance the feature will be reimplemented when Thunderbolt 3 comes to the iMac, but not a great one.

    No way would I sacrifice a 5K display and get a late 2013 just because of Target Display Mode...
     
  4. canny thread starter macrumors regular

    canny

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    #4
    You're right, but I'm thinking ahead. In five years, TDM would be useful with my next computer.
     
  5. varian55zx macrumors 6502a

    varian55zx

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    May 10, 2012
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    #5
    For this reason I doubt it, Apple hates saving money for the consumer.

    TDM is a beneficial money saving feature that promotes longevity, all the things that Apple hates.

    They want you to discard the machine in the e-trash heap and buy a new one in two years. The last thing they want you to do is benefit by being able to use your iMac (which includes a display) as a display, possibly with another computer (a PC?).

    With Apple's move to wanting to screw the customer more than ever before, I strongly doubt we'll see TDM back ever.
     
  6. canny thread starter macrumors regular

    canny

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    Jun 11, 2009
    #6
    Well, it's a balance between features which appeal to a buyer and designed obsolescence. In the case of TDM, it would make it more likely that I would buy a new computer, since I know the old one would still be useful.

    I don't know if Tim Cook's Apple think like that anymore.
     
  7. Samuelsan2001 macrumors 603

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    Oct 24, 2013
    #7
    It will depend on wether they get Kabylake or not I would imagine.
     
  8. maflynn Moderator

    maflynn

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    #8
    I wonder if Apple will wait for Kabylake, given that the 27" iMacs are already on Skylake. It makes sense for them to do so, provided the chipsets and/or GPUs are available for Apple in September/October time frame.
     
  9. Samuelsan2001 macrumors 603

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    Oct 24, 2013
    #9
    I think that's their hope for good tb3 integration etc, but who knows what crap Intel will pull this year.....
     
  10. CWallace, Jun 23, 2016
    Last edited: Jun 23, 2016

    CWallace macrumors 603

    CWallace

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    #10
    The issue lies with decisions made by Intel, not Apple.

    Thunderbolt 2 only supports DisplayPort 1.2, which cannot drive a 5K monitor on a single port. So you would have to use both of the iMac 5K's TB ports for 5K TDM. This is why Apple was forced to create their own custom chip on the iMac 5K to drive the display from the GPU.

    DisplayPort 1.3 can handle 5K, but Intel decided not to implement it with Thunderbolt 3, instead doubling the number of DP 1.2 channels. This means it can support a 5K multi-tile display with one TB3 port via Multi-Stream Transport where one channel drives half the display and the other channel drives the other half. But TB3 will not be able to drive single-tile 5K displays (where the entire screen is handled via one channel) and MST does suffer from performance issues compared to single-tile.
     

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