usb 2.0 vs firewire 400

Discussion in 'Mac Accessories' started by DJJONES, Mar 16, 2008.

  1. DJJONES macrumors 6502

    Joined:
    Mar 9, 2008
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    Newengland usa!
    #1
    which is faster usb 2.0 or firewire 400? i read something about firewire being 400 mb/s and 2.0 being 480 mb/s not sure if this is correct?
    thinking of buying a lacie hd with firewire support but for a 1tb firewire hd vs one with just usb 2.0 its a 100 buck difference and so far i can say my current usb 2.0 hd isnt slow at all im very satified with it.
     
  2. dukebound85 macrumors P6

    dukebound85

    Joined:
    Jul 17, 2005
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    5045 feet above sea level
    #2
    fw 400 for sustained rates


    please use the search feature as this has been brought up a lot
     
  3. DJJONES thread starter macrumors 6502

    Joined:
    Mar 9, 2008
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    Newengland usa!
    #3
    sustained rates???? what you mean??? so usb 2.0 doesnt keep a consitent rate of data transfer speed?
     
  4. ebel3003 macrumors 6502a

    ebel3003

    Joined:
    Jun 20, 2007
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    "The Google"
    #4
    Firewire is peer-to-peer, the devices transfer directly to each other, meaning they can sustain a constant rate of 400mbps. USB involves the processor, which slows it down significantly and can't sustain that 480mbps.

    Search for a more in-depth explanation.
     
  5. sushi Moderator emeritus

    sushi

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    #5
    Generally speaking, FW400 goes up to that speed level and remains there for the balance of the transfer. Where as USB2.0 will spike a bit faster, then maintain at a level around 200Mbps.

    Real world, I have an external HD with both FW400 and USB2.0. I transfered some large files -- around 100GBs. The time required to transfer the files for USB2.0 was over twice as long as for the FW400 connection.

    Definitely go for FW400 or FW800.
     
  6. DJJONES thread starter macrumors 6502

    Joined:
    Mar 9, 2008
    Location:
    Newengland usa!
    #6
    makes sense now thanks guys for the info seeeeen :D
     

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