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Plextor M6 Pro 128GB SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: Feb 10, 2015 3:10 pm
TweakTown Rating: 92%Manufacturer: Plextor

Anvil Storage Utilities


Version and / or Patch Used: RC6


So, what is Anvil Storage Utilities? Anvil Storage Utilities is a storage benchmark for SSDs and HDDs where you can check and monitor your performance. The Standard Storage Benchmark performs a series of tests; you can run a full test, or just the read or the write test, or you can run a single test, i.e. 4k QD16.


Anvil Storage Utilities is not officially available yet, but we've been playing with the beta for several months now. The author, Anvil, has been updating the software steadily on several international forums, and is adding new features every couple of months.


We can use Anvil several different ways to show different aspects for each drive. We've chosen to use this software to show the performance of a drive with two different data sets. The first is with compressible data, and the second data set is incompressible data. Several users have requested this data in our SSD reviews.



0-Fill Compressible Data




Incompressible Data




Using Anvil Storage Utilities, we determined the Plextor M6 Pro reads and writes compressible and incompressible data at the same speed.



Low Queue Depth Read IOPS




The Plextor M6 Pro 128GB nearly breaks into the special 10K IOPS random read range at QD1. Very few SSDs are able to deliver this level of performance. The QD1 random read metric is important because roughly 70% of the reads and writes over time happen at the 4K block size. The M6 Pro scales well, but still lacks the punch of the Samsung 850 Pro.


High Queue Depth Read IOPS




The performance continues to scale well into the high queue depth range. Regular users will rarely reach queue depths on this chart, but it's always nice to have good high queue depth performance for multitasking.


Low Queue Depth Write IOPS




With random write performance, we want to focus more on QD2 and QD4 since the writes often come in batches. They also take place so fast that it's difficult to get to high queue depths, although it's easier to get into high queue depth writes than high queue depth reads. Here the M6 Pro 128GB does really well against the value focused SSDs, but can't keep pace with the premium drives when commands are stacked.


High Queue Depth Write IOPS




At high queue depths, we see that this model loses steam at 80K random write IOPS. There is good scaling all the way to QD32.

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