Yapt (yet another performance test) is a benchmark recommended to me by a pair of drive manufacturers and was incredibly difficult to locate as it hasn’t been updated or used in quite some time. That doesn’t make it irrelevant by any means though, as the benchmark is quite useful. It creates a test file of about 100 MB in size and runs both random and sequential read and write tests with it while changing the data I/O size in the process. The results are a good look at overall drive performance.
Using this test, the new Caviar SE16 750GB drive is by far the best performer of the bunch. The biggest gap lies in the sequential writes test where the density of the 750GB drive’s platter apparently makes the most difference.