Phison PS5031-E31T 2TB Technical Preview (E31T Controller)

CrystalDiskMark is a useful benchmark to measure the theoretical performance levels of hard drives and SSDs. We are using v8.0.5.

Phison's PS5031-E31T 2TB performs very well in the CrystalDiskMark 8 4K QD1 T1 test, with a very good read score but the thing that stands out is the write result of 350.88MB/s. This is the fastest write performance in this test from a Gen 5 drive to date.

As you can see from the benchmarking screens we can confirm the official Sequential ratings of the drive of up to 10,300MB/s for reads and up to 8,600MB/s for writes with default test figures of 10,363.01MB/s for reads and 8,729MB/s for writes.

That 10,363.01MB/s read result sees the E31T leading a bunch of 10GB/s drives although it has the lowest write performance of the bunch.

Peak Performance Profile

We can confirm the official random 4K figures for the drive of up to 1,300,000 IOPS for reads and up to 1,500,000 IOPS for writes using the Peak Performance profile of CrystalDiskMark 8 with default test results of 1,367,880 IOPS for reads and 1,577,389 IOPS for writes.

Real World Profile

The E31T props up the CrystalDiskMark 8 Real World result table with a Sequential read score of 5,578MB/s. However, its write performance in this test is much stronger at 8,475MB/s.

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