AS-SSD Benchmark

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 512GB 860 PRO solid state drive produced read speeds averaging 526.48 MB/s and write speeds averaging 502.56. These sequential speeds mirrored results for the 860 EVO, and compared well against other high-performance SSDs we’ve tested.

Single-threaded 4K IOPS performance tests delivered 44.92 MB/s reads and 119.98 MB/s writes, while the 64-thread 4K read test recorded 384.64 MB/s with write speed at 330.72 MB/s. All of these were slightly better results than the 500GB Samsung SSD 860 EVO produced.

512GB Samsung 860 PRO AS-SSD Results

AS-SSD 64-thread 4KB IOPS performance results are displayed below, comparing several SATA 6GB/s solid state storage devices. In the 64-thread 4KB IOPS performance tests, the 512GB Samsung SSD 860 PRO offered excellent results that placed it among the top 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.