15-inch vs. 13-inch speed/performance difference?

Discussion in 'MacBook Pro' started by stanw, May 13, 2016.

  1. stanw macrumors 6502a

    Joined:
    Aug 29, 2007
    #1
    Besides the obvious screen difference, are there any other differences with speed/performance with a high end 13-inch MBP vs. a high-end 15-inch MBP?

    Thanks.
     
  2. zhenya macrumors 603

    zhenya

    Joined:
    Jan 6, 2005
    #2
    13" uses a dual-core 28w TDP CPU while the 15" uses a quad-core 45W TDP part. GPU differences as well.
     
  3. kat.hayes macrumors 6502a

    Joined:
    Oct 10, 2011
    #3
    Does the quad core only work with certain software?
     
  4. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #4
    Its two fold imo.
    First quad cores allows more active applications running at once with less of a perceived slow down. Then there's certain applications that will take advantage of the cores, like Photoshop, or Vmware.

    If you're just using Safari, then email, or just one app at a given time, say Excel, then the performance difference will not be that much.
     
  5. whiteonline macrumors 6502

    whiteonline

    Joined:
    Aug 19, 2011
    Location:
    California, USA
    #5
    Yes. Applies to any multi-core processor. The software must be developed to run multi-threaded (parallel processing). Multi-core architecture is really useful in video rendering.
     
  6. kat.hayes macrumors 6502a

    Joined:
    Oct 10, 2011
    #6
    I am looking also. I think it would be nice to have more power, though I'm not sure about the extra weight vs. the 13-inch. Anyone have any thoughts on this? Thank you.
     
  7. matt_on_a_mtn Suspended

    Joined:
    Mar 25, 2016
    #7
    Even the base model 15" outperforms the absolute maxed spec 13" by twofold. There's no comparison.

    This isn't just a small boost. It's literally two times the performance, and any benchmark will reflect that.
     
  8. PTLove macrumors 6502

    Joined:
    Sep 12, 2014
    #8
    There is a significant difference in certain applications. Video editing, for instance, is pretty much a straight up 2x increase.

    Day to day web browising? Zero.
     
  9. RoboWarriorSr macrumors 6502a

    Joined:
    Feb 23, 2013
    #9
    The graphics on the entry 15" is approximately 2x faster. Having the extra bandwidth helps a lot.
     
  10. jerwin macrumors 65816

    Joined:
    Jun 13, 2015
    #10
    Safari is multithreaded throughout.
     
  11. stanw thread starter macrumors 6502a

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    Aug 29, 2007
    #11
    Is the 15-inch MBP using the same internals as the 27-inch iMac?
     
  12. leman macrumors 604

    Joined:
    Oct 14, 2008
    #12
    The 15" is faster than the 13" in any workflow. Disregarding number of cores, the quad-core CPU is simply clocked faster (3.4 Ghz vs 3.1 Ghz) and has more cache, so it will perform higher in both single-thread and multi-thread configurations. You are very unlikely to notice the difference in normal workflows though.

    No. The 27 iMac uses desktop-class CPUs.
     
  13. Asmarty Pants macrumors newbie

    Asmarty Pants

    Joined:
    May 14, 2016
    Location:
    Australia
    #13
    It depends on which year they were made.

    For example macbook pro 15" mid 2010 can only have max upgrade of 8gb of ram but the 13" bought out at the same time can have 16gb ram upgrade.

    This definitely makes a difference. [​IMG]
     

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