HD Tach
We tested HD Tach with the benchmark's full variable zone size setting.

Although command queuing can't help the DiamondMax 10's performance in HD Tach's streaming transfer rate tests, the drive is pretty speedy considering its 7,200-RPM spindle speed. The drive's transfer rates are consistently faster than Seagate's Barracuda 7200.7 and a huge improvement over the old DiamondMax Plus 9.

Despite being faster than the 7200.7 in HD Tach's transfer rate tests, the DiamondMax 10's random access time is more than half a millisecond slower than the Seagate drive's. CPU utilization is pretty even across the board, though; all results are within HD Tach's +/- 2% margin for error.