WD VelociRaptor 1TB and Scorpio Blue 500GB

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Overall Performance

To more accurately represent 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 OCZ RevoDrive was the fastest, almost scoring the maximum possible 100 points.

In our real world tests, the new VelociRaptor was nearly 15% faster than its 600GB predecessor, a bigger leap than the second generation 600GB variant had over the first generation 300GB model. Its performance came close to SSD levels. The 500GB Scorpio Blue didn't offer much improvement over the 1TB model, but scored ahead of the Seagate Momentus 750GB, despite having a slower rotational speed.

HD Tune Performance

Real world benchmarks are useful but they don't portray the whole picture as drive speed varies across its span. HD Tune's transfer rate benchmark measures speed across the entire disk.

HD Tune read transfer rate result: VelociRaptor 1TB.

HD Tune read transfer rate result: Scorpio Blue 500GB.

The VelociRaptor 1TB is an incredibly speedy drive according to HD Tune. Its average read transfer rate was actually 20MB higher then the 600GB model's maximum, putting it in the same class as budget SSDs. The Scorpio Blue 500GB showed a bit of improvement over the 1TB version, a good showing for a 5400 RPM model. Its access time was a tad higher than most notebook drives, however.

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