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.
 WD Black NVMe 1TB |
 Samsung 970 EVO 2TB |
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 NVMe 1TB |
 Samsung 970 EVO 2TB |
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 NVMe's random read and write speeds, random access times and the number of operations per second.
 WD Black NVMe 1TB - Read Benchmark |
 Samsung 970 EVO 2TB - Read Benchmark |
 WD Black NVMe 1TB - Write Benchmark |
 Samsung 970 EVO 2TB - Write Benchmark |
The WD Black NVMe performed relatively well when benchmarked with HD Tune. The drive had average read and write speeds of 2332.9 MB/s and 1426.6 MB/s, respectively, and a burst rate of 278.0 MB/s when reading.
 WD Black NVMe 1TB - Random Access Read |
 Samsung 970 EVO 2TB - Random Access Read |
 WD Black NVMe 1TB - Random Access Write |
 Samsung 970 EVO 2TB - Random Access Write |
The WD Black NVMe didn't disappoint when doing random reads and writes. When reading 4KB blocks, the drive reached 41,490 IOPS and had an average speed of 162.072 MB/s. It was even faster when writing, reaching 43,185 IOPS with an average speed of 168.693 MB/s.
