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Plextor M6e Black Edition 256GB PCIe SSD Review

By: Chris Ramseyer | PCIe in Storage | Posted: Feb 6, 2015 3:06 pm
TweakTown Rating: 93%Manufacturer: Plextor

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 ten minutes.

2. Run performance test (one pass only).

3. Repeat one and two, eight times, and on each pass, increase the duration of random writes by five 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 one and two, five times.

 

Recovery Phase:

1. Idle for five minutes.

2. Run performance test (one pass only).

3. Repeat one and two, five times.

 

PCMark 8's Consistency test provides a ton of data output that we use to judge a drive's performance. Here we see the three states of performance for the select SSDs, light use, consumer steady state, and worst case.

 

Storage Bandwidth - All Tests

 

plextor-m6e-black-edition-256gb-pcie-ssd-review_64

 

Here we get our first look at the M6e 256GB Black Edition working with PlexTurbo 2.0 enabled. In the consistency test, we measure performance with PlexTurbo (red line), and without PlexTurbo (black line).

 

Storage Bandwidth - Heavy Load

 

plextor-m6e-black-edition-256gb-pcie-ssd-review_65

 

Under heavy load, the 256GB Black Edition is slower than the 512GB model, and this will change on the next chart, showing us that the 256GB model recovers faster. In the heavy load chart, we see two distinct groups, the Samsung drives at the top, and the Plextor drives at the bottom, which do not perform as well.

 

Storage Bandwidth - Typical Consumer Load

 

plextor-m6e-black-edition-256gb-pcie-ssd-review_66

 

The two groups come much closer together under consumer workloads, but the Samsung drives are still quite a bit faster than the Plextor products. We also see that the 256GB model, with and without PlexTurbo enabled, is faster than the 512GB model; this is due to the recovery time. The 256GB drive has less flash to clean, so it recovers faster than the 512GB Black Edition.

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