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Crucial M550 512GB SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: Apr 24, 2014 2:00 pm
TweakTown Rating: 91%Manufacturer: Crucial

Futuremark PCMark 8 Extended - Consistency Test

 

Version and / or Patch Used: 2.0.228

 

Heavy Usage Model:

 

FutureMark's PCMark 8 allows us to wear the test drive down to a reasonable consumer steady state and then watch the drive recover on its own through garbage collection. To do that, the drive gets pushed down to steady state with random writes and then idle time between a number of tests allows the drive to recover.

 

Precondition Phase:

1. Write to the drive sequentially through up to the reported capacity with random data.

2. Write the drive through a second time (to take care of overprovisioning).

 

Degradation Phase:

1. Run writes of random size between 8*512 and 2048*512 bytes on random offsets for 10 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 8 times, and on each pass increase the duration of random writes by 5 minutes.

 

Steady state Phase:

1. Run writes of random size between 8*512 and 2048*512 bytes on random offsets for 50 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 5 times.

 

Recovery Phase:

1. Idle for 5 minutes.

2. Run performance test (one pass only).

3. Repeat 1 and 2 for 5 times.

 

Storage Bandwidth

 

PCMark 8's Consistency test provides a ton of data output that we use to judge a drive's performance.

 

crucial_m550_512gb_ssd_review_60

 

We made a couple of changes to how we report these tests. On this chart, we show bandwidth in three states: worst case, after 5 minutes of recovery time, and finally after a much longer period of recovery time. The recovery time test is the performance level that most users will find M550 performing at since it shows performance with long idle periods between tests, much like how most of us use our computers.

 

 

Storage Bandwidth All Tests

 

Here we see all of the tests plotted on the same chart. This shows the drive from worst case to steady and finally recovery performance.

 

crucial_m550_512gb_ssd_review_61

 

The M550 512GB has the rather large icons so that it's easier to spot. The drive wears down to low levels, but is capable of recovering to the highest performance we've tested in this capacity size.

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