is firewire 800 the bottleneck here?

Discussion in 'Mac Accessories' started by bniu, May 16, 2012.

  1. bniu macrumors 6502a

    Mar 21, 2010
    Currently have a 5400rpm hard drive connected over firewire 800. Mighty fast, so since FW800 can actually sustain the 100MB/sec speed, what would the drive's full speed potential be? Is FW800 still the bottleneck or is the drive the bottleneck?

    In other words, what is the approx transfer speed of a 5400RPM hard drive by itself? What about a 7200RPM hard drive?
  2. throAU macrumors 603


    Feb 13, 2012
    Perth, Western Australia
    Firewire is 800 megaBIT.

    So you can only expect maybe 80 megaBYTEs per second or so, tops (8 bits per byte, some protocol overhead).

    Yes, it is a bottleneck on modern drives.
  3. paul117 macrumors regular

    Feb 17, 2012
    i must say that response is nice and simple.

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