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.
 Samsung 970 PRO 512GB |
 Plextor M9Pe 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.
 Samsung 970 PRO 512GB |
 Plextor M9Pe 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 970 PRO's random read and write speeds, random access times and the number of operations per second.
 Samsung 970 PRO 512GB - Read Benchmark |
 Plextor M9Pe 256GB - Read Benchmark |
 Samsung 970 PRO 512GB - Write Benchmark |
 Plextor M9Pe 256GB - Write Benchmarkk |
The 970 PRO performed very well when benchmarked with HD Tune. The drive had average read and write speeds of 2533.6 MB/s and 2188.3 MB/s, respectively, and a burst rate of 722.7 MB/s when reading.
 Samsung 970 PRO 512GB - Random Access Read |
 Plextor M9Pe 256GB - Random Access Read |
 Samsung 970 PRO 512GB - Random Access Write |
 Plextor M9Pe 256GB - Random Access Write |
The 970 PRO didn't disappoint when doing random reads and writes. When reading 4KB blocks, the drive reached 41,684 IOPS and had an average speed of 162.828 MB/s. It was even faster when writing, reaching 47,535 IOPS with an average speed of 185.685 MB/s.
