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.

The Kingston DC400 960GB SSD reached a score of 1143. Sequential speeds hit 521.34MB/s for reads and 478.45MB/s write while 4K speeds reached 42.31MB/s for read and 89.23MB/s for write. Overall. the results are more than adequate:

The DC400 was among the fastest drives we have tested in terms of sequential and 4K random read speeds:

The DC400 remained fast in the 4K 64 thread random read test:

The performance for the sequential write test was high, and remained within the acceptable limits in the 4K and 4K64 random write tests, although some drives were faster:

Next up we ran the Compression Benchmark built-into AS SSD. This test uses a mix of compressible and incompressible data and outputs both Read and Write throughput of the drive.

The Kingston DC400 SSD showed a stable behavior across the board, save for a few dips of a few MB/s in the write test. The compressibility of the data being transferred or read had little to no impact on the performance: