AS SSD:
AS SSD is a benchmark designed specifically for solid state drives. The application contains five synthetic tests which are used to determine the sequential and random read and write performance of a drive.
 Crucial BX300 240GB |
 ADATA Ultimate SU900 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.
 Crucial BX300 240GB |
 ADATA Ultimate SU900 256GB |
HD Tune Pro 5.00:
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 BX300's random read and write speeds, random access times and the number of operations per second.
 Crucial BX300 240GB - Read Benchmark |
 ADATA Ultimate SU900 256GB - Read Benchmark |
 Crucial BX300 240GB - Write Benchmark |
 ADATA Ultimate SU900 256GB - Write Benchmark |
The BX300 performed fairly well when benchmarked with HD Tune. The drive had average read and write speeds of 514.4 MB/s and 450.1 MB/s, respectively, and a burst rate of 186.6 MB/s when reading.
 Crucial BX300 240GB - Random Access Read |
 ADATA Ultimate SU900 256GB - Random Access Read |
 Crucial BX300 240GB - Random Access Write |
 ADATA Ultimate SU900 256GB - Random Access Write |
When writing 4KB blocks, the BX300 reached 24,182 IOPS and had an average speed of 94.461 MB/s. The drive was slightly faster when reading, reaching 24,351 IOPS with an average speed of 95.121 MB/s.
