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

The T7K250 just trails the Barracuda 7200.8 in HD Tach's read and write speed tests, and neither can match the fastest Raptor. Interestingly, the 'cuda has a slight platter density advantage over the Deskstar, which in turn has denser platters than the DiamondMax 10.

Although its burst speed is relatively low, at least with 150MB/s Serial ATA transfer rates, the T7K250's access time is a hint faster than the Barracuda 7200.8 and DiamondMax 10.

CPU utilization results are within HD Tach's +/- 2% margin for error for this test.