Up until recently, AS SSD was the only benchmark created specifically for SSD testing and it uses incompressible data which is favored by many SSD enthusiasts. For the typical user, there is no need to panic though as no visible performance degradation will be observed.Ī quick look at our report with the new PM830 shows low 4k results of 21MB/s read and 82MB/s write transfer speeds although performance was below that with all other transfer speed results in the same test. This is definitely the result of a pre-installed OS and further reasoning might even include our choice to create a dual boot system as we did. The high sequential read and write scores being somewhat lower than ATTO is typical and we honestly expected low 4k random read and write scores as is shown by the 14MB/s read and 30MB/s writes scores.

We are testing with Random or highly incompressible data samples for the Samsung PM830 as this drive does not use compression in storage and test results are very similar regardless of the data sample in use, compressible or incompressible.

Crystal Disk Benchmark is used to measure read and write performance through sampling of raw (0/1 Fill/compressible) or random data which is, for the most part, incompressible.

Crystal disk for mac