SSD Question

Discussion in 'MacBook Pro' started by hacksaw1101, Jun 12, 2015.

  1. hacksaw1101 macrumors newbie

    Joined:
    Jun 12, 2015
    #1
    Quick question and maybe this is dumb but...

    I recently bought a fully specced 13" 2015 MBP Retina. The SSD is 1 TB. I have always understood 1TB to actually be 1024 GB. When looking at the drive in Finder or About This Mac it reads a capacity of 999.32 GB. So my question is where are my other 24+ GB?
     
  2. T5BRICK macrumors 604

    T5BRICK

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    Oregon
    #2
    Your understanding doesn't match up with the manufacturers.

    https://support.apple.com/en-us/HT201402
     
  3. hacksaw1101 thread starter macrumors newbie

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    #3
  4. T5BRICK macrumors 604

    T5BRICK

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    #4
    Check the link again.

     
  5. hacksaw1101 thread starter macrumors newbie

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    Jun 12, 2015
    #5
    No I mean Apple sells 128, 256, 512 and 1TB. Seems like it would make more sense to call them 125, 250, 500 and 1TB.
     
  6. T5BRICK macrumors 604

    T5BRICK

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    #6
    No, they'er a 128, 256 and 512GB drives. Those are the actual capacities of the drives. Why would they call them something else?

    Maybe I shouldn't be surprised, but in this day and age I don't get why this question is still being asked. HDDs sizes typically haven't been reported correctly by the operating system.
     
  7. Dark Void macrumors 68030

    Dark Void

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  8. yjchua95 macrumors 604

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    #8
    Actual capacities and formatted capacities are different. It's been that way since forever.
     
  9. cozy1234 macrumors newbie

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    May 22, 2015
    #9
    Yes but there is something difference
    1TB is 1024GB of course
    but to the company
    1TB is 1000GB
    there is difference

    Of course 1GB is 1000MB to the company
    actually it is not 1GB
     
  10. simonsi macrumors 601

    simonsi

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    #10
    It still adds up to something that really doesn't matter. By Apple's definition your storage reporting from Finder is 99.932% accurate at least...
     
  11. mac8867 macrumors 6502

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    Saint Augustine, FL
    #11
    Hard disk space has ALWAYS been reports in whole 1,000's ... always. Don't get confused with RAM which is reported in a "2 to the power" (1024, 2048 etc etc)

    So, a 20MB hard drive was always 20,000,000 bytes, always.

    1TB = 1000 GB = 1,000,000 MB

    Just the way it has always been.
     
  12. yjchua95 macrumors 604

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    #12
    Actually it still is.

    In storage, 1GB = 1000MB.

    In memory (RAM), 1GB = 1024MB.

    Storage has always been reported in this way, while RAM values have always been reported in 2^x values.
     
  13. jlc1978 macrumors 68000

    jlc1978

    Joined:
    Aug 14, 2009
    #13
    Because 500 is not a power of 2.
     

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