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Crucial BX200 480GB & 960GB SATA III SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Dec 29, 2015 6:17 pm
TweakTown Rating: 71%Manufacturer: Crucial

Iometer – Maximum IOPS

 

Version and / or Patch Used: Iometer 2014

 

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

 

Max IOPS Read

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_35

 

Max IOPS Write

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_36

 

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_37

 

The 960GB BX200 delivers the best write performance of the test pool. Read performance is better than that of the SP550, but below the rest of the drives on our chart.

 

 

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

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_38

 

Avg. Read Response

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_39

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_40

 

None of the drives in our test pool have very good response times, and the BX200 is no exception. The 480GB model has the highest read response times of the lot. Write latency isn't any better.

 

 

DiskBench - Directory Copy

 

Version and / or Patch Used: 2.6.2.0

 

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 drives 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

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_41

 

Read Transfer Rate

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_42

 

crucial-bx200-480gb-960gb-sata-iii-ssd-review_43

 

This is the unmasked write performance of Micron 16nm TLC flash. Like all non-Samsung TLC based drives we've tested to date, it is terrible. Plextor's M6V is the exception, and that's because it's MLC based.

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