The Spring Hard Drive Guide

Western Digital WD5000KS Caviar SE16 - 500 GB

Western Digital's WD5000KS Caviar SE (standing for Special Edition) competes directly against Samsung's Spinpoint T166, which also offers 7,200 RPM and 16 MB cache memory. Its transfer rates are no match for the Samsung drive, but the access time and I/O performance is clearly quicker. According to the datasheets, the WD5000KS also requires less energy than the Samsung T166, but the Hitachi T7K500 is even more efficient.

The Western Digital product Website says that the drives reach a Windows Vista Experience Index score of 5.9, which is the maximum today. But the Website doesn't mention the drive's configuration (four platters) nor the MTBF number (Mean-Time Between Failures). Western Digital offers a three-year warranty, and compared to Samsung it, produces most of the hard drive components itself (including wafers and sliders) if you feel this could have an influence on your buying decision.

Patrick Schmid
Editor-in-Chief (2005-2006)

Patrick Schmid was the editor-in-chief for Tom's Hardware from 2005 to 2006. He wrote numerous articles on a wide range of hardware topics, including storage, CPUs, and system builds.