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.
The results of this test are something you should get used to: transfer rates beyond anything you’re likely to have seen before. With a sequential read rate of over 2.8 gigabytes per second, and a sequential write just barely slower at 2.5 gigabytes per second, the performance of our Samsung 950 PRO RAID-0 array is more than five times faster than we’ve seen from the very best SATA SSDs.
Samsung 950 PRO RAID Results
While hammering the drive with 64 requests at once, the results aren’t quite as stellar: a meager 1346MB/s read and 768MB/s write…but as you can see from the chart below they’re still far beyond any SATA SSD. Compared to a single Samsung 950 PRO, write performance has roughly doubled, but reads are only somewhat better.
In the next section, Benchmark Reviews tests transfer rates using ATTO Disk Benchmark.