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 Samsung SSD 850 EVO took the lead in HD Tune's sequential transfer tests, and it put up some of the best access times as well. Burst rates weren't quite as high as some other drives, but they were still good.