Random Read Performance

Our first test of random read performance uses very short bursts of operations issued one at a time with no queuing. The drives are given enough idle time between bursts to yield an overall duty cycle of 20%, so thermal throttling is impossible. Each burst consists of a total of 32MB of 4kB random reads, from a 16GB span of the disk. The total data read is 1GB.

Burst 4kB Random Read (Queue Depth 1)

The Optane SSD 900P doesn't break the record for QD1 random reads, but only because we've also tested the 32GB Optane Memory M.2, which is about two microseconds faster on average for each 4kB read. The Optane SSD 900P is still about 7 times faster than any flash-based SSD.

Our sustained random read performance is similar to the random read test from our 2015 test suite: queue depths from 1 to 32 are tested, and the average performance and power efficiency across QD1, QD2 and QD4 are reported as the primary scores. Each queue depth is tested for one minute or 32GB of data transferred, whichever is shorter. After each queue depth is tested, the drive is given up to one minute to cool off so that the higher queue depths are unlikely to be affected by accumulated heat build-up. The individual read operations are again 4kB, and cover a 64GB span of the drive.

Sustained 4kB Random Read

When longer transfers and higher queue depths come into play, the Optane SSD 900P passes the Optane Memory M.2 and remains more than 6 times faster for random reads than any flash-based SSD.

Both Optane devices more or less level off at queue depths of 8 or higher. The Optane SSD 900P saturates at about 1800 MB/s while the Optane Memory tops out around 1300 MB/s. The Samsung 960 PRO 2TB hasn't caught up by QD32, and doesn't surpass the QD1 random read performance of the Optane SSD until the Samsung reaches a queue depth of about 8.

Random Write Performance

Our test of random write burst performance is structured similarly to the random read burst test, but each burst is only 4MB and the total test length is 128MB. The 4kB random write operations are distributed over a 16GB span of the drive, and the operations are issued one at a time with no queuing.

Burst 4kB Random Write (Queue Depth 1)

The burst random write performance of the Optane SSD 900P is slightly higher than the Intel SSD 750 1.2TB, and about 14% faster than Samsung's fastest.

As with the sustained random read test, our sustained 4kB random write test runs for up to one minute or 32GB per queue depth, covering a 64GB span of the drive and giving the drive up to 1 minute of idle time between queue depths to allow for write caches to be flushed and for the drive to cool down.

Sustained 4kB Random Write

With higher queue depths in play, the Optane SSD 900P scales up faster than the Intel SSD 750 1.2TB, leaving the Optane SSD with a 7-10% lead over the Samsung 960s and Intel 750.

Samsung's 960 PROs and the larger 960 EVO all trail slightly behind the Optane SSD's random write performance for queue depths 1 to 4, then the Samsung drives level off and leave the Optane SSD with a substantial performance advantage at high queue depths. The Intel 750 is slightly faster at QD1 and QD2, but saturates at an even lower performance level than the Samsung 960s.

AnandTech Storage Bench - Light Sequential Performance


View All Comments

  • ddriver - Friday, October 27, 2017 - link

    That only goes to show your thinking skills need a lot of work before they get useful.

    Pardon me for not clapping my hands and cheering at pointless mediocrity. Hopefully some day I will be able to reach that level of excellence ;)

    That's the limited mindset of today. If you applaud AMD's achievements, you have got to be an AMD fanboy, and when that same person criticizes AMD stupidity, it defines all logic, because only fanboys like AMD and fanboys don't criticize their idols, right?
  • CajunArson - Friday, October 27, 2017 - link

    Tell ya what, when AMD invents a completely new type of non-volatile storage technology that nobody has ever put on the market before then I promise not to literally ignore the actual facts that are set forth in Anandtech's review of the product to come to some predetermined bigoted conclusion. Reply
  • ddriver - Friday, October 27, 2017 - link

    AMD would probably invest in a lot, had it not been sandbagged by intel's illegal business practices over the course of decades. It was intel violating the cross-license agreement they agreed to first, and after that was no longer possible, they simply bribed the market away from amd.

    And don't me wrong. I do not "love" AMD, I do realize they only slow love for the consumer because they are not in the position intel is, which is a position they would definitely love to be in, and will abuse as much as intel does.

    My only concern about about AMD has to do with the fact that if they do better, intel has to do better too. True that AMD has a better track record, but again, that's only because they weren't in the position to do worse.
  • CajunArson - Friday, October 27, 2017 - link

    Yawn, another butthurt "OMG INTEL ILLEGAL" delusional fanboy.

    Fact 1: AMD founder Jerry fried-chicken Sanders took kickbacks from Microsoft to testify *that Microsoft was not a monopoly* in federal court. If Colonel Sanders thinks Microsoft was never a monopoly then you know he never thought Intel could possibly have been a monopoly.

    Fact 2: Your former hero Hector Ruiz ran AMD into the ground while paying himself more than Intel's CEO was earning while conducting insider trading. His contribution was to piss away AMD's ability to fab leading edge silicon while massively overpaying for ATi. Oh, and Bulldozer... yeah that was him too. Funny how Intel must have magically mind-controlled him and the rest of AMD into all those decisions!

    People like you love to blame other people for your own bigotries and personal failings. The last thing you could do is to ever think that your Holy AMD could possibly maybe not be perfect.
  • ddriver - Friday, October 27, 2017 - link

    Thanks but my butt is fine, and branding makes a zero difference in my purchase decisions.

    You however are obviously a butthurt intel fanboy who got triggered by the very mention of intel's misdeeds, which are not a conspiracy theory but a PUBLICLY KNOWN FACT.
  • eddman - Friday, October 27, 2017 - link

    You are such a proponent of "facts", just like when you said Note 7 was sabotaged by intel and/or western powers to hold back samsung's and/or south korea's advancements without any shred of evidence.

    You simply do not like whatever intel, nvidia, (insert X,Y,Z company I don't approve of) make and try your hardest to dismiss them by pretending you are "criticizing" them and then trying to cover your personal attacks against other posters as "sarcasm" and by coming up with words out of a 14-years old's vocabulary like "hypetane".

    It would've been ok if you actually were a kid but you claim to be an expert of decades in pretty much everything. Very professional.
  • ddriver - Friday, October 27, 2017 - link

    OK, you seem to have a problem with exploring eventualities. Do you have a problem with evolution? Or the big bang? Those are after all, just theories, some claim they make sense and have some factual or logical support, but they are essentially still just theories and not facts.

    My bet is you don't. You don't really have a problem with claims that are unsubstantiated by evidence, you only have a problem with those of them that are not endorsed by the status quo.

    Because you are a conformist. Which is also why you have a persistent problem with me, because it annoys you that I stand up to conformity and cultivate individualism. How dare I?

    Speaking about 14 year olds, I am pretty sure that unlike you, a 14 year old would get the joke. Optane - over-hyped -> hypetane. Probably even a 5 year old would. But not you, to you it is absolutely inappropriate for someone to mock the lies of a monopoly. Because you are a conformist. You are obligated to show respect and admiration. And you get triggered when someone does not.
  • eddman - Friday, October 27, 2017 - link

    Good job trying to pretend you just said it as a "theory". You mentioned it as an absolute, 100%, undeniable fact without ever using words like "maybe", "could be", "possibly", etc. and belittled anyone who said otherwise.

    As for the "joke", only a kid would come up and use something like that, right there with words like "poser", etc. You are such a professional critic that has to resort to such childish words. At least you finally acknowledged that you simply do all this for mocking purposes.

    Also, changing from the word "sheep" to "conformist". It seems you found a way to hide your insults. Yes, every single person in the world is a "conformist" except you. I'm sure your spamming on anandtech will finally get rid of the evil corporations.
  • ddriver - Friday, October 27, 2017 - link

    "you mentioned it as an absolute, 100%, undeniable fact"

    That's your theory. Unless I explicitly said it is "absolute, 100% undeniable fact", it is only your insinuation.

    "You are such a professional critic that has to resort to such childish words"

    Nah, I just don't limit myself, foolishly believing that being "serious" will make me any smarter, you know, like you do. That's dumb, and I don't feel urges to be considered smart by dumb people.

    "It seems you found a way to hide your insults"

    Nah, I just don't like insulting sheep by comparing them to you. Unlike you, a sheep cannot help but be a sheep. Also, you clearly don't know what "spamming" means, and clearly ignorant of what else I do in regard with the "evil corporations" aside from "spamming".

    I am pretty sure if I was spamming or in violating the site rules in any other way, I would have been banned, don't you think? I haven't even gotten warnings, public or private. Let me know, if I am doing something wrong, would ya AT staff?
  • eddman - Friday, October 27, 2017 - link

    You do not care about what others think about you, that's why you keep commenting and boasting about yourself. You are a typical ego driven person. Keep spamming. AT cannot be bothered with you. Reply

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