Macbook Air why slow 4k video edit

Discussion in 'MacBook Air' started by snakes-, Nov 9, 2016.

  1. snakes- macrumors regular

    Joined:
    Jul 27, 2011
    Location:
    Wiesbaden
    #1
    Why is the 2016 from a friend so slow when he tries to make 4K video edit on his air?

    He have 8GB Ram and 256 SSD but its horrible slow.

    Did apple not support the Air or havent optimized for this or why so slow?
     
  2. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #2
    Check Activity Monitor to get an idea of where the bottleneck is. It could well be that the CPU or the RAM is saturated. Also what OS are they running? Which application are they editing on?

    If it's running low on RAM and paging to disk, simply restarting the laptop with reopen windows unticked can make a massive difference, especially if they've got a large uptime.
     
  3. snakes- thread starter macrumors regular

    Joined:
    Jul 27, 2011
    Location:
    Wiesbaden
    #3
    Created with final cut and the with compressor convert to 4k

    no other application open
     
  4. pika2000 macrumors 68030

    Joined:
    Jun 22, 2007
    #4
    How slow is slow? Have you compared to 4k encoding on other computers/platforms? Encoding videos take a long time in general. It's not like making MP3 files.
     
  5. dasmb macrumors 6502

    Joined:
    Jul 12, 2007
    #5
    I mean, this shouldn't need to be pointed out, but you're editing 4k video on a 1k screen using a dual core 1.6 GHz computer and integrated graphics.

    Ordinarily when we diagnose a performance issue we look for a bottleneck but this whole platform is bottlenecks.

    With video, many fast processors, preferably specialized GPU processors, with a fast disk running fewer operations is the key to realtime performance. In your setup, you're likely saturating the disk, processor and GPU just to read, decode and resample the video.
     
  6. northernmunky, Nov 10, 2016
    Last edited: Nov 11, 2016

    northernmunky macrumors 6502a

    northernmunky

    Joined:
    Jan 19, 2007
    Location:
    London, Taipei
    #6
    Guys, seriosusly these are the worst responses imaginable.

    Buddy, heres your answer. 4k natively will not playback at speed on a Macbook Air, its a good machine but underpowered for 4k editing but the solution is simple, you need to edit using proxy files.

    Assuming you are using FCPX then this is easy.

    More info here:
    https://support.apple.com/kb/PH12702?locale=en_GB&viewlocale=en_US
    And if you havent already done so make sure you create proxy media:

    [​IMG]

    And are using them (if you are set using 'optimised/original', then that is why your edit is slow):

    [​IMG]

    Optimised media (otherwise known as a mezzanine file - not too lossy but also not highly compressed) is still good, but you need a beefy machine to play with it. Especially in 4K.
     
  7. dasmb macrumors 6502

    Joined:
    Jul 12, 2007
    #7
    This is a fantastic response, but the guy is editing video with a Macbook Air and you're assuming he has a $300 software package.
     
  8. northernmunky macrumors 6502a

    northernmunky

    Joined:
    Jan 19, 2007
    Location:
    London, Taipei
    #8
    He said he was in his second post.
     
  9. Maxwill macrumors member

    Maxwill

    Joined:
    May 25, 2015

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