SSD on SATA II vs. USB 2.0

Discussion in 'MacBook Pro' started by DockMac, Oct 27, 2011.

  1. DockMac macrumors regular

    Joined:
    Dec 22, 2008
    #1
    What is the performance hit of using an SSD on SATA II vs. USB 2.0. Is it worth it to have an external SSD? Or is USB 2.0 too slow to provide noticeable benefit?
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
  3. DockMac thread starter macrumors regular

    Joined:
    Dec 22, 2008
    #3
    thanks.

    how do you calculate the actual transfer rate from the advertised one? For instance, how do you get 280 MB/S from 3.0Gbs.
     
  4. oxfordguy macrumors 6502a

    Joined:
    Feb 27, 2008
    Location:
    Oxford, England
    #4
    Using an SSD an anything less than a SATA connection (or maybe eSATA) is a complete waste IMHO. There maybe faster external drives available when more thunderbolt models come on the market, but you're not going to do much better than a 7200rpm HDD in a Firewire 800 enclosure at the moment. The optibay route is a valid one, though.
     
  5. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #5
    I don't calculate it, I read about it. It is spread all over the interweb.
     

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