PCIe SSD in New rMBP 13" Not Fast?

Discussion in 'MacBook Pro' started by greenglue, Oct 28, 2013.

  1. greenglue macrumors regular

    Joined:
    Sep 11, 2010
    Location:
    QC, Canada
    #1
    Hi!

    I got my new rMBP 13" (2.4GHz i5, 128GB SSD, 4GB RAM) last Friday and have been running the BlackMagic Speed Test on my disk with a 5GB default file setting only to notice that the WRITE speed is the speed I used to get on a non-PCIe SSD on my older MBA (mid-2011).
    I also think the READ speeds could be faster, this person who has a 1TB SSD got super fast speeds: http://i.imgur.com/1lxvYk7.jpg while I am getting about 670-720MB/s.

    Any ideas on what could be happening and why the write speed is well...so slow? And also don't know why I don't get ad many check marks as the other speed test from the 1TB SSD guy

    Current speed test: http://i.imgur.com/xp3axqV.jpg

    Thanks,
    Mike


    EDIT: SSD model is: APPLE SSD SD0128F (SanDisk I think...)
     
  2. Orlandoech macrumors 68040

    Orlandoech

    Joined:
    Jun 2, 2011
    Location:
    Salt Lake City, UT
    #2
    First, thats far from slow.

    Second, those speeds are normal as higher capacity SSDs are faster.

    Third, you wouldn't notice the speed difference and make use of it anyway, so enjoy.
     
  3. blake2 macrumors member

    blake2

    Joined:
    Jan 15, 2013
    Location:
    Pittsburgh PA
    #3
  4. Peace macrumors Core

    Peace

    Joined:
    Apr 1, 2005
    Location:
    Space--The ONLY Frontier
  5. jetlitheone macrumors 6502a

    Joined:
    Sep 16, 2012
  6. sholzer macrumors regular

    Joined:
    Jun 21, 2013
    #6
    +1 go run the same test with a spinning disk lol
     
  7. jetlitheone macrumors 6502a

    Joined:
    Sep 16, 2012
    #7
    70 MB/s or so LOL
     
  8. Azathoth macrumors 6502a

    Joined:
    Sep 16, 2009
    #8
    So, when you stop running benchmarks, how much longer does it take you to open safari?
     
  9. dylin macrumors 6502a

    dylin

    Joined:
    Jun 10, 2010
    Location:
    California
    #9
    I guess that's that. Better return it to apple and spend your money on a brand new Dell XPS 15 with an SSD that only has writes speeds of about 400mb/s.

    But then again you can upgrade the components!

    I am not serious at all. ;)
     
  10. Lunfai macrumors 65816

    Lunfai

    Joined:
    Nov 21, 2010
    Location:
    Sheffield
    #10
    A 256GB SSD module has more capacitors hence you will get able to get faster write speeds and a little increase in read, expect around 330 read/700 write with a 128GB.

    Expect around 650 write and 730 read with 256GB. Hence higher capacities will also be a bit better, but in real performance, you won't notice a huge difference.
     
  11. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #11
    Uh... do you know what a capacitor is?
     
  12. Lunfai macrumors 65816

    Lunfai

    Joined:
    Nov 21, 2010
    Location:
    Sheffield
    #12
    Woops I meant to put capacity sorry :p
     

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