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.
For the most part, our HD Tune tests correlate with what we saw in SANDRA. The Vertex 4 drives offer excellent write performance here, and the best access times, but sequential reads seem to pale in comparison to the other drives we tested.