5. AS SSD
We move on with the AS SSD benchmark, which contains five synthetic as well as three practical tests. The synthetic tests determine the sequential and the random read / write performance of an SSD. These tests are carried out without using the operating system's cache. The Seq-test measures how long it takes to read and write an 1GB file. Most importantly, this sequential benchmark uses incompressible data for all of its transfers.
During AS SSD the drive reached a score of 997. Sequential speeds hit 500MB/s for reads and 450MB/s write while 4K speeds reach 27MB/s for read and 103MB/s for write. Access times are for read and write are both 0.037ms and 0.082ms, respectively.
The AS SSD Copy Bench presents us with transfer speeds for different file types. It reached a high of 408MB/s for the ISO test. For its lowest value, it reached 284MB/s on the program test.
In the following graph you see how the Crucial BX200 960GB SSD reads and writes files, which have been partially of fully compressed. It is obvious that the both reading and writing speeds do not depend on level of file compression: