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. Even so, the Samsung 840 Pro comes right out of the gate with sequential reads over 500 MB/s and sequential write speeds approaching that mark. The real surprise, though, are the numbers that the 840 Pro achieves in RAPID mode.
With RAPID mode enabled through Samsung Magician, the Samsung 840 Pro SSD reaches for the starts. Sequential read speeds are above 1 GB/s with RAPID mode enabled and sequential write speeds are over 800 MB/s. That’s a pretty decisive start for the 840 Pro in our testing and if the AS-SSD tests are an indicator, the rest of the SSDs in our bench are about to be left in the dust.
In the next section, Benchmark Reviews tests transfer rates using ATTO Disk Benchmark.