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MDD BP5e 480GB M.2 SATA III SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Jul 26, 2016 4:50 pm
TweakTown Rating: 90%Manufacturer: My Digital Discount

Iometer - Maximum IOPS


Version and / or Patch Used: Iometer 2014


We use Iometer to measure high queue depth performance. (No Partition)


Max IOPS Read




Max IOPS Write







MDD doesn't list factory max random performance specifications. We can tell you to expect about 78K write and 101K read. The M.2 BP5e delivers the best random write performance of the drives in our test pool.



Iometer - Disk Response


Version and / or Patch Used: Iometer 2014


We use Iometer to measure disk response times. Disk response times are measured at an industry accepted standard of 4K QD1 for both write and read. Each test runs twice for 30 seconds consecutively, with a 5-second ramp-up before each test. We partition the drive/array as a secondary device for this testing.


Avg. Write Response




Avg. Read Response






The cased BP5e has slightly better (lower) write response than the M.2 model. The reverse is true for read response. ADATA's SP550 delivers the best write response of the bunch.



DiskBench - Directory Copy


Version and / or Patch Used:


We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) composed primarily of incompressible sequential and random data as it's transferred from our DC P3700 PCIe NVME SSD to our test drive. We then read from a 6GB zip file that's part of our 28.6GB data block to determine the test drive's read transfer rate. Our system is restarted prior to the read test to clear any cached data, ensuring an accurate test result.


Write Transfer Rate




Read Transfer Rate






When evaluating planar-based TLC SSDs, we look to the write transfer rates with extra scrutiny. Look at the sustained write transfer rates of the BX200 and the SP550. This is THE reason why we've never rewarded an SM2256-powered SSD with a TweakTown recommendation. As we've stated many times, if any SSD cannot deliver sustained write transfer rates that can at least match that of a high-performance mechanical HDD, then it isn't a drive worth spending money on.

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