How fast is the VelociRaptor drive?

So I splurged recently and picked up one of the new Western Digital 300GB SATA VelociRaptor drives. I also happened to be in Las Vegas, and there was a Fry’s nearby. I think that was the cause, and the effect was me ending up with the drive, but I digress. Every so often, I wonder how fast my various 5400, 7200, and 10000 RPM drives are, especially taking USB 2.0 and ESATA into account. I downloaded the latest version of HDTach and went to work with my not-very-scientific performance tests:

Hard Drive
Random Access
CPU Utilization
Average Read
Burst Speed
Internal Hitachi 100GB 7200RPM
16.8 ms
3 %
41.3 MB/s
114.6 MB/s
External 5400RPM (USB)
17.9 ms
13 %
32.8 MB/s
36.2 MB/s
External 750GB 7200RPM (USB)
13.9 ms
0 %
34.7 MB/s
35.1 MB/s
External 750GB 7200RPM (ESATA)
13.6 ms
4 %
66.9 MB/s
90.4 MB/s
External 300GB 10000RPM VelociRaptor (ESATA)
7.3 ms
4 %
80.0 MB/s
88.9 MB/s

Hardware used: Dell D820 laptop, 4gb RAM, Windows XP/SP2

BTW – the numbers in bold make me happy, and here’s the graphic that went along with the final test (the VelociRaptor drive):