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Plextor M3 Pro 256GB (PX-256M3P) Solid State Drive Review - Benchmarks - CrystalDiskMark

We've seen the 128GB drive already and we were impressed with its performance - the 256GB model is faster.

By: | SSDs in Storage | Posted: Mar 27, 2012 5:20 pm
TweakTown Rating: 93%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.




Usually we just use CDM to look at 4k and NCQ performance, but CDM uses incompressible data so we're also going to look at the sequential speed as well. Starting off with the sequential test, we see the M3 Pro read a little faster than the Vertex 3 240GB. The 4k read performance is about the same between these two drives with a single command, but when 4 commands are given, the M3 Pro doubles the V3 240GB performance. At 32 commands the M3 Pro runs away from the V3 by around 70MB/s.




If you remember back to the HD Tune Pro write test, the M3 Pro was a little behind the Vertex 2 240GB. That test took place with compressible data, an area where SandForce based drives typically have an advantage. In CDM we are now looking at incompressible data. When it comes to incompressible files the Plextor M3 Pro 256GB has around a 120MB/s lead with sequential writes.


The 4k and NCQ tests also show a nice lead except for in the 4 command test.

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