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Plextor M6e PCIe M.2 SSD Review – RAID Tested at 1.4GB/s

ATTO DISK BENCHMARK VER. 2.46

ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256MB and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.

THROUGHPUT

Plextor M6e ATTO Chart Comparison Highlighted

Looking at the Plextor M6e in RAID0, we can se that it reaches 1.3GB/s read performance. As well, the high sequential write performance of the M6e 512GB SSD was well above listed specs.

Plextor M6e PCIe M.2 512GB SSD ATTO

CRYSTAL DISK BENCHMARK VER. 3.0 X64

Crystal Disk Benchmark is used to measure read and write performance through sampling of highly compressible data (oFill/1Fill), or random data which is, for the most part, incompressible. Performance is virtually identical, regardless of data sample so we have included only that using random data samples.

CDM Regular2

When comparing Crystal DiskMark performance to that of ATTO typically, we would see a very noticeable drop because ATTO uses highly compressible data samples, whereas CDM uses highly incompressible samples.

Plextor M6e PCIe M.2 512GB SSD Crystal DiskMark

CDM RAID

It is good to see that, for the most part, the caliber of the Plextor M6e shines through, regardless of the data samples we throw at it.

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iCrunch
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iCrunch

Great review, thanks! I have a quick question: How would you quantify the “real world” performance gain of a PCIe x4 SSD over a PCIe x2?

Les@TheSSDReview
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Transfer speeds. PCIe X4 will be the stuff used to edit and compile high end 4K video whereas X2 will do just about everything else. For now, the only step up is X2.

dzezik
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dzezik

why are You so excited with useless RAID0 setup. it only increase stream read/write.Are You only copying big files from one disk to another. that is Your main task for computers? RAID0 also increase failure probability. Try RAID1 ti is more secure and gives boost for random IO reads (depends on RAID controller), random IO read is weakest area for SSD. RAID1 also makes Your data more secure. Please remember RAID0 is not RAID is antithesis of RAID. It is not redundant (R). Who uses RAID0 for keeping data, this is only test setup, no one is using it at… Read more »

Bernd
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Bernd

Nice review, thanks.I ma planning to buy such a SSD but i would ike to use it externally like a bigger and better USB stick, does anybody know if such external enclosures are planned, or is it technically not practicable(the speed limit over usb 3.0 doesn’t hinder me)?

Les@TheSSDReview
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There isn’t a USB enclosure that I am aware of just yet but I might watch MyDigitalSSD as they will probably be the first. There are, however, several PCIe adater cards and we have done an article in such in our M.2/NGFF section.

jp1wc1
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jp1wc1

you could buy a m.2/ngff to sata 2.5 inch enclosure and then purchase a sata to usb adapter. like this http://www.microsatacables.com/ngff-m-2-ssd-to-sata-adapter-with-case also search on ebay and amazon.

Les@TheSSDReview
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I don’t understand why you would do that. The purpose of introducing PCIe is to get the higher performance we see outside the barriers of SATA. One needs to find either an X2 or X4 PCIe adapter, much as we have used in our reports.

Actually….when you doing the comparison to USB 3.0, I see where you are coming from.

Rod Bland
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There will be an external USB 3.0 enclosure on the market in early June designed to accept PCIe M.2 SSD’s. Stay tuned on that one.

Calvin
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Calvin

Why the CrystalDisk shows it is SATA 3. Thanks

Les@TheSSDReview
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The same shows on their own test as well and it is undoubtedly the reason of this being such a new technology.

Kubo90
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Kubo90

Hi, I have a question. Why Plextool shows speed: 6Gb/s (SATA 3), when the M2 interface has a speed 10 Gb / s, even if it is in the PCI-e!

Les@TheSSDReview
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It is a matter of technology advancing to quickly to cover all the bases. They will update soone enough I am sure.