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.
 WD_BLACK SN770 1TB |
 ADATA XPG ATOM 50 1TB |
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 SN770 1TB |
 ADATA XPG ATOM 50 1TB |
HD Tune Pro 5.75:
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 SN770's random read and write speeds, random access times and the number of operations per second.
 WD_BLACK SN770 1TB - Read Benchmark |
 ADATA XPG ATOM 50 1TB - Read Benchmark |
 WD_BLACK SN770 1TB - Write Benchmark |
 ADATA XPG ATOM 50 1TB - Write Benchmark |
The WD_BLACK SN770 performed relatively well when benchmarked with HD Tune. The drive had average read and write speeds of 4,324.7 MB/s and 2,091.4 MB/s, respectively.
 WD_BLACK SN770 1TB - Random Access Read |
 ADATA XPG ATOM 50 1TB - Random Access Read |
 WD_BLACK SN770 1TB - Random Access Write |
 ADATA XPG ATOM 50 1TB - Random Access Write |
When writing 4KB blocks, the WD_BLACK SN770 reached 50,233 IOPS and had an average speed of 196.225 MB/s. The drive was even faster when reading, reaching 54,942 IOPS with an average speed of 214.617 MB/s.
