HD Tach is a low level hardware benchmark for random access read/write storage devices such as hard drives, removable drives (ZIP/JAZZ), flash devices, and RAID arrays. HD Tach uses custom device drivers and other low level Windows interfaces to bypass as many layers of software as possible and get as close to the physical performance of the device possible.
Benchmark Results: The Seagate Momentus 7200.2 200GB Notebook hard drive has an advertised speed rating of 59 MBps (internal). HD Tach 126.96.36.199 found that the average read speed was 54.6MBps and the averge write speed was 47.8MBps. The random access time of the drive was 14.7ms, which isn’t too bad for a notebook. The burst speed of 129.0MBps seemed a little lacking, but remember the jumper is installed on the drive making it operate as a SATA 1.5 device.