HD Tach will test the sequential read, random access and interface burst speeds of your attached storage device (hard drive, flash drive, removable drive, etc). All drive technologies such as SCSI, IDE/ATA, 1394, USB, SATA and RAID are supported. Test results from HD Tach can be used to confirm manufacturer specs, analyze your system for proper performance, and compare your performance with others. HD Tach is very easy to use, quick, and presents data in easy to read graphs, including the ability to compare two storage devices on screen at the same time for easy analysis.
HDTach is our classic staple storage testing application and it shows the Intel X25-M in a very good light. The burst test shows the Intel SSD as the best single drive performer and is only bested by the VelociRaptors in RAID 0 that has the benefit of using two SATA channels for throughput. The average transfer speeds show an interesting result as well giving the Intel X25-M a HUGE advantage in sustained reads over any other single drive even though the write speed is less than (but close to) all the other platter-based drives. Access times are impressively low as well at 0.1 ms compared to 7.1 ms for the VelociRaptor.