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To gauge the overall performance of the drives, we assigned a score of 25 to the drive that excelled most in each benchmark series (loading, application, file copying, and installation) and the rest proportionally, giving each benchmark set an equal weighting. Of the drives compared, the WD VelociRaptor 600GB was the fastest, scoring just under 97 out of a possible 100.
Impressively the Barracuda 3TB slipped past the WD Caviar Black 2TB, making it the fastest 7200 RPM hard drive to ever grace our labs. Note that our tests were performed on a 50GB partition at beginning of the drive where it's fastest; it's what you can expect if you store your operating system there but isn't representative of the entire span of the drive.
HD Tune Performance
HD Tune's transfer rate benchmark on the other hand does measure speed across the entire drive.
The read speed of the Barracuda 3TB looks fantastic, staying above 150 MB/s until about the 1600GB mark, slowing down almost linearly to ~94 MB/s at the very end. Raw throughput remains fairly fast in the slower portions of the drive. Access times also seem to be fairly decent for a drive this large.
The high areal density and rotational speed helps the new Barracuda achieve the best HD Tune results we've seen in a mechanical hard drive.
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