New 2.5" WD 750GB drive - 250Gb or 333GB per platter?

Discussion in 'MacBook Pro' started by austinpike, Aug 7, 2009.

  1. austinpike macrumors 6502

    Joined:
    Oct 5, 2008
    Location:
    MN
    #1
    The press release info implies that the 750GB version uses 333GB/platter technology, but they don't come right out and say it. They seem to be referring mainly to the 1TB version.

    Assuming they are using the larger platters, do they simply block off the excess capacity? Does this mean the 750GB might actually be faster on average, assuming they disable the slowest blocks?

    I really want to put one of these in my 17" MBPRo, but I'd hate to find out later that the 750GB version is actually using "old tech" 250Gb platters.
     
  2. zw-gator macrumors 6502a

    zw-gator

    Joined:
    Oct 23, 2005
    Location:
    Canada
    #2
    Old tech = HHD

    Does the MBP even support HDs larger than 500GB?
     
  3. Bill Gates macrumors 68020

    Bill Gates

    Joined:
    Jun 21, 2006
    Location:
    127.0.0.1
    #3
    The 750GB and 1TB drives both have 3 platters, and so are 12.5mm in height. The 750GB drive won't have 250GB blocked off. It'll use lower-density platters, and should be slightly slower in benchmarks.
     
  4. Gabriel GR macrumors 6502a

    Gabriel GR

    Joined:
    Jul 12, 2009
    Location:
    Athens, Greece
    #4
    What's special about HDD's larger than 500GB?
     
  5. Heb1228 macrumors 68020

    Heb1228

    Joined:
    Feb 3, 2004
    Location:
    Virginia Beach, VA
    #5
    The 1TB has 3 333GB platters and the 750GB model has 3 250GB platters. They're both 12.5mm in height, so larger than the drive you'll be replacing. I've heard (no promises here) they will fit, but no reports yet on if temps are increased because of reduced airflow. I expect there will be a marginal increase in heat, but not enough to worry about.

    zw-gator, you're right, the laptop will probably explode due to too much storage capacity. :eek:
     

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