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Crucial M550 256GB SSD Review (Page 9)

By Chris Ramseyer from Apr 10, 2014 @ 17:08 CDT
TweakTown Rating: 92%Manufacturer: Crucial

DiskBench - Directory Copy


Version and / or Patch Used:


Note: In this test, we use the Lenovo W530 Mobile Workstation and a SuperSpeed S301 SLC 128GB SSD to move a 15GB block of data to and from the target drive. This is part of our real-world test regiment. Roughly 45GB of data resides on the target drive before the '15GB Block' is transferred. The 15GB Block is the same data we built for the Data on Disk Testing and is a mix of compressible and incompressible data.




The first of our mobile tests shows data transferring to and from the drive. Before we get too deep into the chart, I want to point out that our tests are all ran with a set time in between them and it never changes.


As you can see, the M550 write speed in the directory copy test is a lot lower than the other drives. I've only seen this one other time and that was on the ADATA SP920 512GB. Both the SP920 and the M550 use the same controller. We have eight drives with this controller, and out of those eight, only two tested this way. After all of our other tests were finished, we went back and ran the test again. On the second test, the M550 256GB wrote the entire 15.2GB block of data at 269.4 MB/s.

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