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Teaser: IDE vs FW vs USB

9 July 2007

I recently bought an external HD for my ibook with dual interface (USB and Firewire). Some of you may ask… why the hell did you buy a slower and more expensive interface? (USB is advertised as 480Mbit/sec, and FW as 400).
Yeah, well, this is far to be the complete test, but I’ve got some remarcable results so let’s post it and the people knows someone is caring to post something here ^^. Take a look at the plot: the X axis is the filesize (in, bytes, up to 1MB) and the Y axis is the time (in seconds). Blue is USB, red is IDE, green is Firewire.

idefwusb.png
Oh nice… so USB is 80Mbit/s faster… right…

In the forthcoming full-fledged article, more results, the instructions to do the test in your home and the C code of the tests ;)

PS: Don’t ask me why the IDE interface follows 2 lines (I’ve repeated the test some times, and still happens), I have no clue, but I’ll try to figure it out later :P.

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    3 Responses to “Teaser: IDE vs FW vs USB”

  1. Joan Says:

    I’ve found this comparative table:

    The real velocity of USB 2.0 is more slow than FireWire400. But the prize goes to Serial ATA: 120MBytes/s, wow!

    PD: Hem obert un blog comunitari el Jeremies, l’Erades i jo: foratdecuc.sourceforge.net. Passa’t de ves en quant!

  2. Joan Says:

    PS2: The table:
    http://mugara.dualmac.com/fotos/usbfire.png

  3. Joan Says:

    Hello! What’s up?
    I’m waiting for new news (excuse the redundance) from Finland. When will you write again?

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