The difference of the Optibay and external drive

Discussion in 'MacBook Pro' started by sugarboylovemac, Mar 28, 2011.

  1. sugarboylovemac macrumors member


    Mar 12, 2011
    I already ordered MBP 15" early 2011.

    The main bay is apple 128SSD. I am planning to buy one more hd for the storage. But what is the difference between with a second hard drive in the Optibay and external drive ???

    I mean any difference with the speed ? As I know, Optibay will use sata2. And the external drive will be select FireWire 800...

    Or any difference I need to concern ?

    Thx a lottttttttt ! :(
  2. legreve macrumors regular


    Nov 22, 2010
    The Sata will be slightly faster... Even though FW800 talks about having a speed of 800mb/s its not entirely accurate. The difference is not big, but enough for to choose the optibay solution. I think you'll notice the biggest difference when dealing with larger files.
  3. fehhkk macrumors 6502a


    Jun 11, 2009
    Chicago, IL
    My external FW800 drive does around 65MB/s reads and writes. Your SATA-II harddrive can do, if it's a fast one, maybe 90-100MB/s.

    USB 2.0 does around 35-38MB/s approx.
  4. sugarboylovemac, Mar 28, 2011
    Last edited: Mar 28, 2011

    sugarboylovemac thread starter macrumors member


    Mar 12, 2011
    Thx~ I think I will go to Optibay and find a good performance hd.

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