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Plextor M6e 256GB PCIe SSD Review - Breaking the Chains of SATA III

By: Chris Ramseyer | PCIe in Storage | Posted: Mar 10, 2014 2:06 pm
TweakTown Rating: 93%Manufacturer: Plextor

Desktop Test System





ATTO Baseline Performance


Version and / or Patch Used: 2.34


ATTO is an established method of measuring sequential throughput often used in marketing literature. Although it has very little value in measuring real-world performance, we can use it to verify the manufacturer's claims.




In ATTO, we fell short of Plextor's claims of 770 MB/s sequential read and 580 MB/s sequential write speeds. This doesn't come as a surprise to us and, after we explain why, it won't be a surprise to you.


PCI Express performance varies from one motherboard model to another. This isn't just an issue on consumer motherboards; we see the performance issues on workstations and servers, as well. Performance can also vary between lanes on the same motherboard.

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