Alex Schepeljanski of Alex Intelligent Software develops the free AS SSD Benchmark utility for testing storage devices. The AS SSD Benchmark tests sequential read and write speeds, input/output operational performance, and response times.
AS-SSD Benchmark uses compressed data, so sequential file transfer speeds may be reported lower than with other tools using uncompressed data. For this reason, we will concentrate on the operational IOPS performance in this section.
Beginning with sequential transfer performance, the MyDigitalSSD m.2 solid state drive produced speeds up to 486.87MB/s for reads and a leisurely 116.06MB/s for writes. The read speeds are reasonable if not exceptional, but the sequential write speed (as measured in this particular benchmark) wouldn’t have been impressive three years ago. Single-threaded 4K IOPS performance tests delivered 38.32MB/s reads and 45.60MB/s writes, while the 64-thread 4K read test recorded 141.17MB/s with write performance at 61.87 MB/s.
MyDigitalSSD Super Boot Drive Results
The chart below summarizes AS-SSD 64-thread 4KB IOPS performance results among a variety of enthusiast-level SSDs. The MyDigitalSSD MDM242-SB-256 turns in very poor results on this benchmark, which means its IOPS (I/O operations per second) performance is poor. Admittedly this isn’t a metric that has much relevance for most consumer workloads.
In the next section, Benchmark Reviews tests transfer rates using ATTO Disk Benchmark.