If you've ever backed up a hard drive, or just wanted to move files between systems, you know the process almost always takes longer than you'd like. That's why I've been so enthusiastic about new technologies such as USB 3.0, which promises transfer rates as much as 10 times faster as USB 2.0. In practice, I haven't seen that drastic of a performance improvement but I have seen some very noticeable improvements, depending on the kind of data being backed up.
To test this out, I reran some of the tests I did with the first USB 3.0 drives using a newer machine that comes with a built-in USB 3.0 port, rather than using an add-in card. For my tests, I used a Lenovo ThinkPad X1, which has an internal Hitachi 7,200GB drive as well as both USB 2.0 and USB 3.0 ports. (By convention the USB 3.0 ports are marked with a blue connector and the cables say "SS" for "super speed.")
As before, I started with Seagate's FreeAgent GoFlex drive, a 5,400-rpm 500GB drive that is available with multiple connections. I tested with both USB 2.0 and USB 3.0, and then tried again Seagate's 7,200-rpm BlackArmor PS100, a USB 3.0 drive. Next, I tried a USB 3.0 flash drive, in this case Kingston's DataTraveler HyperX 3.0, a 64GB flash drive that promises read speeds up to 225MB/s and write speeds up to 135 MB/s (both big jumps over what you can expect with traditional memory sticks).
I started by backing up a 1.25GB video file and testing each drive from both the USB 2.0 and 3.0 ports; the differences were dramatic. In all cases, the drives performed much better when connected by USB 3.0:
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