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Plextor PX-M5S 256GB Solid State Drive Review

By: Chris Ramseyer | SSDs in Storage | Posted: Jul 23, 2012 2:21 pm
TweakTown Rating: 88%Manufacturer: Plextor



Version and / or Patch Used: 3.0 Technical Preview

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CrystalDiskMark is a disk benchmark software that allows us to benchmark 4K and 4K queue depths with accuracy.


Key Features:-


* Sequential reads/writes

* Random 4KB/512KB reads/writes

* Text copy

* Change dialog design

* internationalization (i18n)


Note: Crystal Disk Mark 3.0 Technical Preview was used for these tests since it offers the ability to measure native command queuing at 4 and 32.




In CDM we're looking the 4K and native command queuing performance. We've long know that Toshiba Toggle Mode flash does really well in the 4K performance area and that is shown here as well. The M5S 256GB with Micron flash is around 5MB/s slower than the Toggle models. That deficit scales to the QD4 test, but the QD32 test is actually won by the new model by a small margin when just looking at the Plextor drives.




When writing 4K data the M5S is around 25MB/s slower than the previous Plextor drives in the chart. Just as with the read test, the QD4 results show the M5S down again, but the QD32 shows the performance in between the M3 and M3 Pro.


In this test we also see the sequential write speed of all the drives using incompressible data. The new M5S is much faster with incompressible data when compared to the SandForce based drives.

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