Is there a 60Hz 4K TB/hdmi cable or adapter?

Discussion in 'MacBook Pro' started by Mackist, May 18, 2015.

  1. Mackist macrumors member

    Joined:
    Dec 30, 2013
    #1
    I've looked at a whole bunch, and it's all 30Hz@3840*2160.
    Just bought a new MB today, need to hook it up to a 4K Tv.
    Thanks,
    M
     
  2. snaky69 macrumors 603

    Joined:
    Mar 14, 2008
    #2
    What model? IIRC not all of them do 4k @60Hz
     
  3. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #3
    I haven't seen any Mini DisplayPort to HDMI 2.0 cables or adapters.
     
  4. Samuelsan2001 macrumors 604

    Joined:
    Oct 24, 2013
    #4
    It won't go to a TV.....

    Unless it is one of the very few with a display port input......

    If it is HDMI 30Hz is your limit, although you might get 52Hz with a hack and a minidisplay to HDMI 1.4.
     
  5. Mackist thread starter macrumors member

    Joined:
    Dec 30, 2013
    #5
    2015 MBA 2.2 i7 8GB 512GB
    Everymac:
    2nd Display Support: Dual/Mirroring* 2nd Max. Resolution: 3840x2160 (4K)*
    Details: *Although Apple originally only reported that this model could support a single external display up to 2560x1600, third-parties discovered that it actually could support a 3840x2160 (4K) display, and Apple subsequently revised their official documentation to confirm this, as well.

    No good to me without HDMI 2.0, though, it would seem.
     
  6. Samuelsan2001 macrumors 604

    Joined:
    Oct 24, 2013
    #6
    Depends what you want to do with it.


    if it is just to run media on your big screen 30fps is fine as most video only runs at 24fps anyways. (even the 3rd hobbit one of the few that was filmed in ultrafast speeds is only 48fps)

    If you want to use the TV to work on as a main screen you may have issues but hey it's an incredibly thin light laptop the air and the fact that it can output to 4K at all is a minor miracle...
     
  7. mellofello macrumors 65816

    Joined:
    Feb 1, 2011
    #8
    Unfortunately no.

    4k 30hz isn't the end of the world. I use it on my 4k tv and it looks glorious. The lag is less perceptible from the couch.
     
  8. campyguy macrumors 68040

    Joined:
    Mar 21, 2014
    Location:
    Portland / Seattle
    #9
    OP, the the "reason" we can't find an adapter like the one you're looking for is that it doesn't exist, because the conversion chipset isn't on the market yet - it doesn't officially exist, either.

    Two companies late last year announced they're working on it, but one - the Korean parent of Accell - demoed a working adapter like the one you're seeking (on a Mac, I believe) at CES 2015. I don't have a link, but there is some info over at AVForums. You might give Accell a call - they've got great CS...
     
  9. Mackist thread starter macrumors member

    Joined:
    Dec 30, 2013
    #10
    Will use a 40" TV it as desktop monitor. My 24" gets too crowded for video editing.
    Accell is vaunting 1080p @120Hz, but carefully avoiding mentioning the 4K refresh rate. It's HDMI 1.4, so it can't be 60.
    Thanks, y'all, will go with 30Hz while I wait for 60 to hit the market.
    M
     
  10. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #11
    Why not just get an SST-capable mDP 2.0 display that can support 4K at 60 Hz?
     
  11. Mackist thread starter macrumors member

    Joined:
    Dec 30, 2013
    #12
    that'd be great, but i need 40".

    haha, *collective sigh* by 60 years' worth of oscar-winning editors who cut on the likes of moviola.
     
  12. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #13
    - Here you go.
     
  13. campyguy macrumors 68040

    Joined:
    Mar 21, 2014
    Location:
    Portland / Seattle
    #14
    Accell's HDMI 2.0 product hasn't been announced yet - BizLink hasn't even started production. I asked a connect of mine, the royalty price for the HDMI part is the hangup - the licensee wants too much coin (I won't cite my source). When and if it flies, look for Accell (BizLink's NA partner), ParadeTech, and/Pluggable to put one out.

    Here's the link on Clubic's web site - it's in French, translate as you see fit! Note the nMBP being used as the test mule:
    http://www.clubic.com/salon-informa...layport_a_l_hdmi_2_0_chez_bizlink-749111.html

    Here's the AVSForum thread I'm following, FYI:
    http://www.avsforum.com/forum/35-ca...-1-2-hdmi-2-0-adapter-there-manufacturer.html
     
  14. Mackist thread starter macrumors member

    Joined:
    Dec 30, 2013
    #15
    thank you so much!!! i'm buying it!
     

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