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 are 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 480GB Kingston HyperX Predator PCIe M.2 SSD produced speeds up to 1265.49 MB/s for reads and 950.05 MB/s writes. These speeds were among the best we’ve recorded for any high-performance SSD. Single-threaded 4K IOPS performance tests delivered 32.15 MB/s reads and 53.75 MB/s writes, while the 64-thread 4K read test recorded 403.43 MB/s with write performance at 322.91 MB/s.
AS-SSD 64-thread 4KB IOPS performance results are displayed below, comparing several enthusiast-level storage products currently on the market. In the 64-thread 4KB IOPS performance tests, the 480GB HyperX Predator PCIe M.2 SSD easily surpassed all but the most expensive PCIe competition, yet still offering far improved sustained performance over competing SSDs. The chart below is sorted by total combined performance, which helps illustrate which products offer the best operational input/output under load:
In the next section, Benchmark Reviews tests transfer rates using ATTO Disk Benchmark.