Mac Pro memory speed

Discussion in 'Mac Pro' started by adonis3k, Aug 18, 2017.

  1. adonis3k macrumors 6502

    Joined:
    Apr 15, 2012
    #1
    Hi all,

    I have 2013 Mac Pro with 16GB or ram but want to upgrade to 64. The stuff inside runs at 1866mhz but have seen some 64GB which runs at 1600mhz, will this make a major difference in performance in day to day tasks, mainly photoshop/after effects.

    Thanks
     
  2. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #2
    I will be very surprised if you can tell any different.
     
  3. AidenShaw macrumors P6

    AidenShaw

    Joined:
    Feb 8, 2003
    Location:
    The Peninsula
    #3
    I agree. If you look at the subtests of benchmarks that stress memory bandwidth, you'll see a difference.

    If you look at the subtests that measure performance of useful applications, the difference is small to noise.

    The reason is that the memory subtests deliberately try to defeat the effects of memory caches to measure the raw bandwidth from DIMMs to/from CPU.

    Applications, on the other hand, are usually written to make the best use of cache.
     
  4. adonis3k thread starter macrumors 6502

    Joined:
    Apr 15, 2012
    #4
    So I should go for it instead of spending xx amount more for 1866 stuff?
     
  5. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #5
    IMO, yes
     

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