Accentient - How fast is the VelociRaptor drive?

Friday, November 21, 2008

How fast is the VelociRaptor drive? by Richard Hundhausen

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):

HDTach

Friday, November 21, 2008 4:33:58 PM (Mountain Standard Time, UTC-07:00)

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