HD Tune Pro 4.50:
Next, I ran a series of tests using HD Tune Pro. This hard disk utility measures a drive's performance by testing its sequential read and write speeds as well as its access time, burst rate and CPU usage. For this review, I used it to benchmark the Apollo Expert D300's random read and write speeds, random access times and the number of operations per second.
 HD Tune Read Benchmark - USB 3.0 |
 HD Tune Read Benchmark - USB 2.0 |
 HD Tune Write Benchmark - USB 3.0 |
 HD Tune Write Benchmark - USB 2.0 |
Once again, the Apollo Expert D300 performed very well when connected to the computer's USB 3.0 port. The drive had average read and write speeds of 106.3 MB/s and 84.3 MB/s, respectively, and a burst rate of about 123 MB/s.
 HD Tune Random Access Read - USB 3.0 |
 HD Tune Random Access Read - USB 2.0 |
 HD Tune Random Access Write - USB 3.0 |
 HD Tune Random Access Write - USB 2.0 |
Using USB 3.0 didn't have nearly as big of an effect on the Apollo Expert D300's random read and write performance. Nevertheless, the IOPS, access times and speeds were better than when the drive was connected to a USB 2.0 port.
