The Intel Optane SSD 800p (58GB & 118GB) Review: Almost The Right Size
by Billy Tallis on March 8, 2018 5:15 PM ESTAnandTech Storage Bench - Light
Our Light storage test has relatively more sequential accesses and lower queue depths than The Destroyer or the Heavy test, and it's by far the shortest test overall. It's based largely on applications that aren't highly dependent on storage performance, so this is a test more of application launch times and file load times. This test can be seen as the sum of all the little delays in daily usage, but with the idle times trimmed to 25ms it takes less than half an hour to run. Details of the Light test can be found here. As with the ATSB Heavy test, this test is run with the drive both freshly erased and empty, and after filling the drive with sequential writes.
The Light test allows the flash-based SSDs to make the most of their write caching throughout the test, so even the 900p is surpassed by the Samsung NVMe SSDs while the 800p ranks with the budget NVMe drives. When the drives are full and the flash-based SSDs get bogged down with garbage collection, the 900p comes out ahead but the 800p still trails behind the Samsung 960 PRO. The VROC configuration look especially poor in terms of average data rate, and the RAID-5 performance is surprisingly low.
The Optane SSD 800p scores in the middle tier of SSDs for average latency on the Light test, and VROC RAID is no help here. VROC does help with the 99th percentile latencies, but without it the 800p looks like a low-end drive that merely doesn't have garbage collection problems.
The average read latencies from the 800p are almost twice as high as those from the 900p, and VROC's overhead only makes it worse. The average write latencies of the 900p aren't as good as the best flash-based SSDs, and the write latency of the 800p is well over twice that of the 900p.
The 99th percentile latency scores from the 800p are not great, but at least the drives perform just as well when full. Small flash-based drives are the most heavily affected when constant garbage collection becomes necessary.
The Light test is a fairly short run with any of these drives, but the 800p still manages to return extremely good power usage numbers that are well ahead of any flash-based NVMe SSD.
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Alexvrb - Saturday, March 10, 2018 - link
Calin you are obviously too young to remember some of the early "affordable" consumer NAND SSDs. Hammer them a bit and they stalled... producing worse results than a lot of fast HDDs... especially in random writes. Sequential speeds were never a major issue that I can recall.The_Assimilator - Friday, March 9, 2018 - link
Trying to equate a NAND-to-Optane transition to the mechanical-HDD-to-SSD transition is laughable.wumpus - Friday, March 9, 2018 - link
The moment pseudo-SLC in TLC showed up, Optane was pretty much dead in the SSD market. They would presumably compete with SLC (does anybody still make it?), but TLC is the coffin nail in consumer markets.From the moment the 3d-xpoint hypetrane started, it was clear that it would try to wedge itself into the memory hierarchy, presumably between flash and DRAM, and hopes for replacing flash.
Flash isn't going anywhere, and 3d-xpoint hasn't shown the endurance needed for a fast-paging DRAM replacement. It certainly wouldn't replace *all* DRAM, but anyone who's seen a 4GB machine actually function (slow, but they do work) knows that nearly all that expensive (hopefully DDR4 will fall back to Earth) DRAM could be replaced by something sufficiently fast, but neither flash nor 3d-xpoint is quite there.
To compound the problems, Intel decided that "Optane in a DDR4 slot" would be strictly proprietary. So there are marketing/political problems trying to get manufacturers to support it as well as technical issues to make the stuff.
name99 - Friday, March 9, 2018 - link
Consumer NAND launched in an environment where it had SOME spaces where it was optimal, and so had the chance to grow. It started in phones and DAPs, then grew to ultra-laptops, and finally the desktop. Point is --- there were niches that could pay for on-going improvement.Octane is different because there is NO obvious niche that justifies continuing to pump money into it. The niche that was SUPPOSED to justify it (NV-DIMMs) is STILL MIA years after it was promised...
iwod - Friday, March 9, 2018 - link
I am all for super fast QD1 results. But so far none of the application seems to benefits from it. At least not according to test results. I am wonder, we are either testing it wrong, looking at the wrong thing, or the benefits of QD1 is over thought and bottleneck is somewhere else.And NAND continues to get bigger better and faster. We may be looking at below $100 250GB SSD this year.
iter - Friday, March 9, 2018 - link
Exactly. It is hilarious how them fanboys keep claiming that we overlook the advantages, when I explicitly state them almost every time.There are very little and far in between workloads where those advantages can translate into tangible improvement of real world performance.
When your bottleneck is a human being interacting via input devices, discrete savings of several dozens of microseconds are simply not perceivable.
Even cumulative savings are in fact not, because most of the time that data has to also be processed by the cpu, which is why synthetics aside, raw real world applications snow minuscule going from a decent ssd to a crazy fast nvme device.
sor - Friday, March 9, 2018 - link
Probably has something to do with your name calling and “it keeps getting worse and worse” when that objectively isn’t true. You come off as having an axe to grind.It is not true that this is worse and worse. The power improvements shown here are quite impressive. Low QD performance is still better than NAND by an order of magnitude, and looks to have gotten a roughly 20% improvement. Sequential read now even beats NAND.
You and others are falling over yourselves to crap on it for some strange reason, and clearly are ignoring the upsides. It’s just a product.
iter - Friday, March 9, 2018 - link
"when that objectively isn’t true"It absolutely is. It is slower than the 900p. They improved power a bit - big whoop, especially considering it came at the cost of gutting the interface by 50%.
118 GB? I bet enthusiasts all over the planet are drooling about that crazy capacity. Not to mention the smaller model...
Nobody denies the strong points, it is just that they are way too little to make this a good product.
Instead of getting bigger and faster it gets smaller and slower.
And somehow the price per GB increases.
Truly impressive.
nevcairiel - Friday, March 9, 2018 - link
If you want to go down that road, at current consumer SSD speeds (say Samsung 960 Pro), I doubt any normal user would even notice if the performance suddenly doubled (or halfed, for that matter).Does that mean we should not innovate? Perhaps consumer work-load isn't the main goal, but if you have the hardware, why not try to make a consumer product, anyway.
MrSpadge - Friday, March 9, 2018 - link
With decently fast SATA SSDs the bottleneck is almsot entirely the CPU already, unless you've got purely I/O load.