Samsung PM841 512GB mSATA SSD Review – Performance and Capacity in a Client SSD

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.

Samsung PM841 512GB ATTO

ATTO Disk Benchmark provided highs of 556MB/s read and 336MB/s write transfer speeds which exceed specifications listed by Samsung.

CRYSTAL DISK BENCHMARK VER. 3.0 X64

Crystal Disk Benchmark is used to measure read and write performance through sampling of raw (0/1 Fill/compressible) or random data which is, for the most part, incompressible. In the Samsung PM841 512GB mSATA SSD, performance results are very similar whether we test with compressible or incompressible data and, for this reason, results are displayed utilizing incompressible data.

Samsung PM841 512GB Crystal DiskMark

Typically, Crystal DiskMark results are lower than that of ATTO Disk Benchmark, the reasoning being of course that incompressible data samples are used for testing in CDM. Overall, these are great scores, considering the form factor and capacity of the Samsung PM841 SSD.

AS SSD BENCHMARK VER 1.6

Up until recently, AS SSD was the only benchmark created specifically for SSD testing and it uses incompressible data. AS SSD, for the most part, gives us the ‘worst case scenario’ in SSD transfer speeds because of its use of incompressible data and many enthusiasts like to AS SSD for their needs. Transfer speeds are displayed on the left with IOPS results on the right.

Samsung PM841 512GB AS SSD BenchSamsung PM841 512GB AS SSD IOPSA great Total Score is seen with AS SSD as well as a high IOPS result of 90966 IOPS. AS SSD Copy Bench displayed the quality of the SSD as well, resulting in SATA 3 level transfer speeds during the transfer of all three files.

Samsung PM841 512GB AS SSD Copy Bench

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Arthur Brownlee IV
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Arthur Brownlee IV

Thanks for the review, was looking to find a good high capacity SSD for my Ultrabook. Looks like I can swoop up the Samsung instead of the Atlas which I was hesitant about.

Les@TheSSDReview
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They are sold out presently and expect to be until the 28th. We have several e-mails already regarding lack of stock.

Ted
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Ted

Are there any updates on ETA on the PM841 512GB? I’ve been looking everywhere but no one has them in stock!

Les@TheSSDReview
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They apparently sell out faster than they can et them in. I might contact the seller listed on Amazon and see if you can reserve one.

Ja Man
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FREE Samsung 840 Pro 512gb Giveaway:
http://www.woobox.com/bb2i9m/3b2c4e

Gregoire Gentil
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Gregoire Gentil

I’m wondering if this 512GB will be used in the new Samsung Series 900X3E (1080p screen). In USA, NP900X3E-A02US=128GB, NP900X3E-A03US=256GB and there is no trace of 512GB. While in UK, NP900X3E-A01UK=256GB, NP900X3E-A03UK=512GB and there is no trace of 128GB. Totally confusing. As of end of April, only NP900X3E-A02US is available at Amazon. I think that I will buy NP900X3E-A02US, then buy and replace by a 480GB Muskin. I hope that the Series 900X3E uses a mSSD and Muskin can fit into it. Samsung (like Apple) really overprices the storage as $(NP900X3E-A03US) – $(NP900X3E-A02US) ~ $500 >> expected $1 * 128GB… Read more »

Les@TheSSDReview
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If you were hoping fot the reviewed drive, isn’t that cheaper than the Mushkin? They sold out within a day but should be restocked and available by end month so stay tuned. Nice systems though but I can’t see Samsung making a 512GB standard as it would cost too much for purchase. We should be happy that they are using their own mSATA SSDs finally…or are they?

Luke Macaulay
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Luke Macaulay

Thanks for the review. I don’t see any other large capacity SSDs out there so I’ll be keeping an eye out for when they come back in stock. I presume these would be compatible with most systems? I have a Lenovo Ideapad Yoga 13…

kackburt
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kackburt

Any chance to get firmware upgrades here? mine isn’t recognized by the Magician software from Samsung.
(btw. the SSD came with my 900X4D)

Les@TheSSDReview
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Any chance to get firmware upgrades here? mine isn’t recognized by the Magician software from Samsung. Funny hitch though having bought it in a Samsung system and still not being able to use it with the Magician. Did Samsung Magician come pre-installed on the machine?

kackburt
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kackburt

No it wasn’t unfortunately… I installed it myself to give it a try. I just read somewhere that the Magician supports consumer SSDs only and it seems like the PM841 isn’t one of those.