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 MX500 500GB |
 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 MX500 500GB |
 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 Ultimate SU900's random read and write speeds, random access times and the number of operations per second.
 Crucial MX500 500GB - Read Benchmark |
 ADATA Ultimate SU900 256GB - Read Benchmark |
 Crucial MX500 500GB - Write Benchmark |
 ADATA Ultimate SU900 256GB - Write Benchmark |
The MX500 performed fairly well when benchmarked with HD Tune. The drive had average read and write speeds of 512.8 MB/s and 409.5 MB/s, respectively, and a burst rate of 157.9 MB/s when reading.
 Crucial MX500 500GB - Random Access Read |
 ADATA Ultimate SU900 256GB - Random Access Read |
 Crucial MX500 500GB - Random Access Write |
 ADATA Ultimate SU900 256GB - Random Access Write |
When reading 4KB blocks, the MX500 reached 28,312 IOPS and had an average speed of 110.596 MB/s. The drive was faster when writing, reaching 320,956 IOPS with an average speed of 120.925 MB/s.
