Western Digital Caviar Blue (500GB) review

Price when reviewed
Western Digital’s Caviar Blue range of drives is the company’s mid-range brand and, consequently, there’s only a 16MB cache and none of the power-saving features that distinguish Caviar Green products.

The 500GB Caviar Blue drive has the smallest platter capacity on show this month too – it’s constructed from three 166GB platters – which, as we expected, translated to disappointing levels of performance.

Average read and write results of 74.5MB/sec and 48.1MB/sec place the 500GB Caviar Blue near the bottom of our benchmark table, with several other 500GB drives – including Hitachi’s Deskstar and the eco-friendly Samsung EcoGreen – outpacing this disk.

The 500GB Caviar Blue can’t make up for its lacklustre performance with good value, either. At 9.4p/GB, it’s one of the more expensive drives on test this month. If you need a 500GB drive the Samsung EcoGreen is cheaper, faster and uses less power.


Capacity 500GB
Hard disk usable capacity 465GB
Hard disk type Mechanical
Cache size 16MB
Spindle speed 7,200RPM
Seek time (ms) 9ms
Cost per gigabyte 9.4p

Noise and power

Idle power consumption 8W

Performance tests

HD Tach burst speed 101.0MB/sec
HD Tach random access speed 9.2ms
HD Tach average sequential read speed 47.0MB/sec

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