Yes, FireWire is Faster Than USB
This should not come as a shock to anyone, as it has been proven before, but let me take this moment to say that, yes, despite their rated speeds, 400-megabit FireWire S400 (aka IEEE 1394) is faster than 480-megabit USB 2.0.
While swapping out disk drives (first to upgrade the internal drive in my MacBook Pro and later to give Time Machine more room), I took some quick performance snapshots with xbench and showed that, depending on I/O type, FireWire can be almost twice as fast as USB, but neither really holds a candle to SATA.
I also took the opportunity to compare the highly-integrated USB 2.0 controller in my Maxtor OneTouch 4 Mini with the much more complicated FireWire/USB combo found in the Verbatim SmartDisk, as well as the performance of three popular notebook hard disk models.

