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Plextor M5 Pro Xtreme 256GB SSD Review

By: Chris Ramseyer | SSDs in Storage | Posted: Mar 6, 2013 8:06 pm
TweakTown Rating: 92%Manufacturer: Plextor

PCMark Vantage - Drives with Data Testing


For a complete breakdown on the Drives with Data Testing please read this article. You will be able to perform this test at home with the files provided in the article - full instructions are included.


- Brief Methodology


SSDs perform differently when used for a period of time and when data is already present on the drive. The purpose of the Drives with Data testing is to show how a drive performs in these 'dirty' states. SSDs also need time to recover, either with TRIM or onboard garbage collection methods.


Drives with Data Testing - 25%, 50%, 75% Full States and Dirty / Empty Test

Files needed for 60 (64GB), 120 (128GB), 240 (256GB)

60GB Fill - 15GB, 30GB, 45GB

120GB Fill - 30GB, 60GB, 90GB

240GB Fill - 60GB, 120GB, 160GB

Empty but Dirty - a test run just after the fill tests and shows if a drive needs time to recover or if performance is instantly restored.




SSDs slow when their flash has data on it and in this series of tests we measure the performance with a few different states of data volume on the drive.


The Xtreme increases performance over the original M5 Pro, but is still behind Samsung's 840 Pro, OCZ's Vector and Intel's 520 Series (which represents a number of LSI SandForce SF-2281 drives with synchronous NAND flash) drives.

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