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Crucial MX200 500GB SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Apr 13, 2015 1:58 pm
TweakTown Rating: 92%Manufacturer: Crucial

Iometer - Maximum IOPS


Version and / or Patch Used: 1.1.0


We use Iometer to measure high queue depth performance.








We are able to hit Crucial's marketed figure of 100,000 random read IOPS and able to exceed the MX200's 87,000 random write IOPS marketing spec.



Iometer - Disk Response


Version and / or Patch Used: 1.1.0


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 is run twice for 30 seconds consecutively, with a 5-second ramp-up before each test. The test drive/array is partitioned and attached as a secondary device for this testing.


Write Response




Read Response




Average Disk Response




Both our MX series drives have better write response times than the rest of the field. Our MX100 has the best write response time. Read response times of Crucial's MX200 are slower than the rest of the drives on our chart.



DiskBench - Directory Copy


Version and / or Patch Used:


We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) of mostly incompressible 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 drives read transfer rate. The system is restarted prior to the read test to clear any cached data, ensuring an accurate test result.


Write Transfer Rate




Read Transfer Rate






The MX200 kills our transfer test. Look at how much faster the MX200 can write a large chunk of data than any other comparable SATA III SSD. The MX200 is about 11% faster than Samsung's 850 Pro, and nearly 13% faster than the MX100. Keep in mind the MX200 model we are testing today does not have an emulated SLC caching layer.

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