AS SSD:
AS SSD is a 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.
 WD Black SN750 with Heatsink 1TB |
 Samsung 970 EVO Plus 250GB |
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.
 WD Black SN750 with Heatsink 1TB |
 Samsung 970 EVO Plus 250GB |
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 WD Black SN750's random read and write speeds, random access times and the number of operations per second.
 WD Black SN750 with Heatsink 1TB - Read Benchmark |
 Samsung 970 EVO Plus 250GB - Read Benchmark |
 WD Black SN750 with Heatsink 1TB - Write Benchmark |
 Samsung 970 EVO Plus 250GB - Write Benchmark |
The WD Black SN750 performed relatively well when benchmarked with HD Tune. The drive had average read and write speeds of 2413.6 MB/s and 1536.2 MB/s, respectively, and a burst rate of 154.7 MB/s when reading.
 WD Black SN750 with Heatsink 1TB - Random Access Read |
 Samsung 970 EVO Plus 250GB - Random Access Read |
 WD Black SN750 with Heatsink 1TB - Random Access Write |
Samsung 970 EVO Plus 250GB - Random Access Read |
When reading 4KB blocks, the WD Black SN750 reached 42,683 IOPS and had an average speed of 166.734 MB/s. The drive was even faster when writing, reaching 48,395 IOPS with an average speed of 189.046 MB/s.
