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.
 Samsung 970 EVO 2TB |
 Samsung 970 PRO 512GB |
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 EVO 2TB |
 Samsung 970 PRO 512GB |
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 EVO's random read and write speeds, random access times and the number of operations per second.
 Samsung 970 EVO 2TB - Read Benchmark |
 Samsung 970 PRO 512GB - Read Benchmark |
 Samsung 970 EVO 2TB - Write Benchmark |
 Samsung 970 PRO 512GB - Write Benchmark |
The 970 EVO performed relatively well when benchmarked with HD Tune. The drive had average read and write speeds of 2,458.3 MB/s and 1318.6 MB/s, respectively, and a burst rate of 209.0 MB/s when reading.
 Samsung 970 EVO 2TB - Random Access Read |
 Samsung 970 PRO 512GB - Random Access Read |
 Samsung 970 EVO 2TB - Random Access Write |
 Samsung 970 PRO 512GB - Random Access Write |
The 970 EVO didn't disappoint when doing random reads and writes. When reading 4KB blocks, the drive reached 39,232 IOPS and had an average speed of 153.252 MB/s. It was even faster when writing, reaching 44,204 IOPS with an average speed of 172.675 MB/s.
