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.
 Toshiba Q Series Pro 256GB |
 Samsung SSD 840 Pro 256GB |
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.
 Toshiba Q Series Pro 256GB |
 Samsung SSD 840 Pro 256GB |
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 Q Series Pro's random read and write speeds, random access times and the number of operations per second.
 Toshiba Q Series Pro 256GB - HD Tune Read Benchmark |
 Samsung SSD 840 Pro 256GB - HD Tune Read Benchmark |
 Toshiba Q Series Pro 256GB - HD Tune Write Benchmark |
 Samsung SSD 840 Pro 256GB - HD Tune Write Benchmark |
The Q Series Pro performed relatively well when benchmarked with HD Tune. The drive had average read and write speeds of 480.7 MB/s and 464.5 MB/s, respectively, and a burst rate of 285.6 MB/s when reading
 Toshiba Q Series Pro 256GB - HD Tune Random Access Read |
 Samsung SSD 840 Pro 256GB - HD Tune Random Access Read |
 Toshiba Q Series Pro 256GB - HD Tune Random Access Write |
 Samsung SSD 840 Pro 256GB - HD Tune Random Access Write |
The Q Series Pro didn't disappoint when doing random reads and writes. When reading 4KB blocks, the drive reached 13,796 IOPS and had an average speed of 53.893 MB/s. The Q Series Pro was even faster when writing, reaching 22,018 IOPS with an average speed of 86.010 MB/s.
