SSD speeds on mid 2014 rmbp?

Discussion in 'MacBook Pro' started by kfmfe04, Aug 17, 2014.

  1. kfmfe04 macrumors member

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    #1
    Any differences between the 256GB, 512GB, 1TB versions?
     
  2. Rbk23 macrumors regular

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    Jul 8, 2014
    #2
    Generally, the larger the faster.

    The 256 is around 700 MB/S and the 1TB is close to 1000
     
  3. yjchua95 macrumors 604

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    #3
    All speeds in MB/s, written as read/write:

    256GB:
    SanDisk SD0256DF - 700/550
    Samsung SM0256F - 720/670
    256GB is a lottery between these two brands.

    512GB Samsung SM0512F - 750/720
    1TB Samsung SM1024F - 1031/990

    512GB and 1TB are Samsung-only.

    1TB is the fastest, because it uses a 4-lane PCIe channel. All other capacities only use a 2-lane PCIe channel.
     
  4. joecool99 Suspended

    joecool99

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    #4
    Awesome, 1TB a sec - very impressive. Where did you get this info, any video speed test to show it in action.
     
  5. alphaod macrumors Core

    alphaod

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    #5
    Unless it's from a Mac Pro in which all of them are 4-lane.
     
  6. yjchua95 macrumors 604

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    #6
    Yup, the ones in the nMP are all Samsung variants with 4-lane channels.
     
  7. yjchua95 macrumors 604

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    #7
    This 1TB speed is from my own rMBP.
     

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  8. kfmfe04 thread starter macrumors member

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    Jun 19, 2010
    #8
    ty for the info - as Apple charges quite a lot for the 1TB upgrade, I think I may go for the 256GB and upgrade to a 4-lane 1TB 2-3 years down the line.

    Maybe by then, >1TB PCIe will be available (at a reasonable price).
     
  9. yjchua95 macrumors 604

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    #9
    How about a 512GB?

    I have a 512GB in my late-2013 27" iMac and have not noticed any difference with the 1TB in my late-2013 15" rMBP.
     
  10. Jeff Flowerday macrumors regular

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    #10
    Someone would have to make an SSD that worked in the new rMBP. Currently there is no upgrade path, you should buy what you will need for as long as you plan on owning the computer.
     
  11. kfmfe04 thread starter macrumors member

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    #11
    I agree that there is a small probability that for the next five years no one will manufacture a PCIe SSD upgrade which will be compatible with the rmbp, but I'm willing to make the bet that they will come out, and prices per capacity will continue to fall.

    In fact, I think it is more than likely that within the next five years, we'll see >1TB PCIe SSDs in a form factor that will fit inside a rmbp.

    What if I'm wrong? Then I will have to live with 256GB and stream the rest of ac WIFI or buy an external SSD and go through USB3 or perhaps FW. No biggie.

    The alternative is to pay an extra $300/$800 + tax now for a 500GB or 1TB upgrade. Note that $800 is almost the price of a mba!

    Others may follow your suggestion, but I think I will bet on having the option to upgrade more cheaply in the future, as I have no immediate needs for that much capacity - it's a luxury, not a necessity (right now) for me.
     
  12. MCAsan macrumors 601

    MCAsan

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    #12
    The 1TB SSD rules. :D

    I was so glad to upgrade from the 756GB SATA one in the 2012 rMBP.
     
  13. joecool99 Suspended

    joecool99

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    #13
    thanks - in your signature i see you have 2013.
    is this from latest 2014 15" with 1TB SSD?
     
  14. Zaakkk macrumors newbie

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    Aug 18, 2014
    #14
    1TB MBPR 15" Mid 2014

    [​IMG]
     

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  15. yjchua95 macrumors 604

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    #15
    Late-2013 2.6/16/1TB/750M
     
  16. joecool99 Suspended

    joecool99

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    #16
    this is epic.
    i'm getting one. the SSD speeds increase itself is worthy.
    thanks.
     
  17. benz1ne macrumors newbie

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    May 5, 2015
    #17
    Dramatic Drop in Write Speed!

    I've just got my Retina 2014 15" with 1TB... I ran the Blackmagic Speed Test before I migrated my data from my old machine and it was fine, Write Speed in excess of 1,000MB/s but now (with 400GB in use) it's dropped and seems capped at 465-480 - It's not going any faster but the Read Speed seems fine....

    Has anyone experienced this? Or know what the cause could be?

    Thanks.
     
  18. Samuelsan2001 macrumors 603

    Joined:
    Oct 24, 2013
    #18
    Not giving TRIM

    a chance to clean things up. Leave it for a few hours on overnight and check in the morning...
     
  19. stylinexpat macrumors 6502a

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    Mar 6, 2009
    #19
    I am thinking of upgrading my SM0512F to the new 960 from Samsung. Anyone here done this?
     

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