Which 2.5" HD has a faster interface?

Discussion in 'MacBook Pro' started by katad, Jan 3, 2007.

  1. katad macrumors newbie

    Joined:
    Dec 27, 2006
    #1
    From slowest/oldest to fastest/newest?

    ATA-6? IDE Ultra ATA100? Serial ATA150?
     
  2. iW00t macrumors 68040

    iW00t

    Joined:
    Nov 7, 2006
    Location:
    Defenders of Apple Guild
    #2
    SATA

    But you do realise that your laptop only accepts one kind right?
     
  3. katad thread starter macrumors newbie

    Joined:
    Dec 27, 2006
    #3
    thanks

    I have an older powerbook, pre-SATA, but am a little confused with the ATA-6 and IDE Ultra-100 labels. I know SATA is not backwards compatable, but what about the other 2 interfaces?
     
  4. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

    Joined:
    Jan 20, 2005
    #4
    ATA-6 and UltraATA/100 are the same thing...transfer speed is 100 MB/sec. (ATA-7 or UltraATA/133 goes to 133 MB/sec.)

    SATA150 is newer and has a transfer speed of 150 MB/sec, with SATA II going to 300 MB/sec. SATA also offers a number of other advantages, from thinner and longer cable lengths to lower power requirements.
     

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