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CrystalDiskMark is a useful benchmark to measure theoretical performance levels of hard drives and SSD’s. We are using v6.0. and v7.0.
Corsair's 2TB MP400 performs well in CrystalDiskMark's deeper queue depth 4K test. From looking at the two benchmark result screens, it seems that the controller has a preference for handling compressible data. Using this type of data sees a big boost in the random read performance at queue depths 1 and 8.
At a queue depth of 1, the MP400 performs well, sitting in the top ten of our results chart.
The latest version of CrystalDiskMark, version 7, includes a couple of profiles that can be used for testing – Peak Performance and Real World. The result screens for these two profiles not only display MB/s results but also IOPS and latency.
Looking at the Peak Performance results for Sequential read/write performance we could confirm both official Sequential performance figures. The drive is rated up to 3.480MB/s for reads, with the tested drive producing 3,462MB/s and up to 3,000MB/s for writes, with a test result of 2,994MB/s.
When it comes to random performance the drive is rated as up to 380,000 IOPS for reads and up to 560,000 IOPS for writes but as you can see from the Peak Performance results, the best we saw from the drive in the CDM 7 benchmark was 323,721 IOPS for reads and 318,185 IOPS for writes.
We also used CrystalDiskMark 7 to test the drive at lower queue depths (where most of the everyday workloads occur) using 1 to 4 threads. The read performance climbs smoothly throughout the tested queue depths and threads.
In the write tests, the best overall performance comes from the three threaded tests which peak at the QD8 mark at 383,419 IOPS (1,570.49MB/s).
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