EFD Software's HD Tune is described on the company's web site as such: "HD Tune is a hard disk utility with many functions. It can be used to measure the drive's performance, scan for errors, check the health status (S.M.A.R.T.), securely erase all data and much more." The latest version of the benchmark added temperature statistics and improved support for SSDs, among a few other updates and fixes.
The SanDisk Extreme II drives led the pack in terms of average transfer rate according to the HD Tune benchmark. Access times for the three SanDisk drives were middling, however, and burst rates trailed the competition.