CrystalDiskMark is a synthetic benchmark that tests both sequential and random small and mid-sized file transfers using incompressible data. It provides a quick look at best and worst case scenarios with regard to SSD performance, best case being larger sequential transfers and worse case being small, random transfers.
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| CrystalDiskMark x64 Benchmarks |
| Synthetic File Transfer Tests |
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Once again, we see the Intel Optane SSD 905P trail some of the better NAND-based NVMe SSDs in the sequential transfer test, but note it was only the read tests where it was significantly behind -- in the write test, the 950P actually took second place. In the random 4K transfer tests, however, the Optane SSD 905P killed it, and led the pack overall.
