AS SSD:
AS SSD is a relatively new benchmark designed specifically for solid state drives. The application contains five synthetic tests used to determine the sequential and random read and write performance of a drive.
 Plextor PX-256M6S |
 Plextor PX-256M5Pro Xtreme |
AS SSD also includes a copy benchmark. This test copies an ISO (two large files), program (many small files) and game (small and large files), returning the speed and duration of each.
 Plextor PX-256M6S |
 Plextor PX-256M5Pro Xtreme |
HD Tune Pro 4.61:
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'm also going to use it to benchmark the PX-256M6S's random read and write speeds, random access times and the number of operations per second.
 Plextor PX-256M6S - HD Tune Read Benchmark |
 Plextor PX-256M5Pro Xtreme - HD Tune Read Benchmark |
 Plextor PX-256M6S - HD Tune Write Benchmark |
 Plextor PX-256M5Pro Xtreme - HD Tune Write Benchmark |
The PX-256M6S performed fairly well when benchmarked with HD Tune. The drive had average read and write speeds of 497.6 MB/s and 404.7 MB/s, respectively, and a burst rate of 381.7 MB/s when reading.
 Plextor PX-256M6S - HD Tune Random Access Read |
 Plextor PX-256M5Pro Xtreme - HD Tune Random Access Read |
 Plextor PX-256M6S - HD Tune Random Access Write |
 Plextor PX-256M5Pro Xtreme - HD Tune Random Access Write |
The PX-256M6S didn't disappoint when doing random reads and writes. When writing 4KB blocks, the drive reached 20,177 IOPS and had an average speed of 78.819 MB/s. The PX-256M6S was even faster when reading, reaching 22,372 IOPS with an average speed of 87.392 MB/s.
