Previewing Silicon Motion SM2260 NVMe Controller With 3D MLC NAND (512GB)
by Billy Tallis on February 17, 2017 9:00 AM ESTRandom Read Performance
The random read test requests 4kB blocks and tests queue depths ranging from 1 to 32. The queue depth is doubled every three minutes, for a total test duration of 18 minutes. The test spans the entire drive, which is filled before the test starts. The primary score we report is an average of performances at queue depths 1, 2 and 4, as client usage typically consists mostly of low queue depth operations.
The SM2260 sample delivers random read performance that is on par with most of its competitors, both vetter than any SATA SSD and notably better than the Patriot Hellfire, OCZ RD400 and Intel SSD 600p NVMe SSDs.
The SM2260 sample delivers random read performance that is on par with most of its competitors, both vetter than any SATA SSD and notably better than the Patriot Hellfire, OCZ RD400 and Intel SSD 600p NVMe SSDs.
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The SM2260 scales to much higher performance at higher queue depths than the Patriot Hellfire, but doesn't hit quit as high a peak as the rest of the MLC NVMe SSDs, some of which are also near full speed at QD16.
Random Write Performance
The random write test writes 4kB blocks and tests queue depths ranging from 1 to 32. The queue depth is doubled every three minutes, for a total test duration of 18 minutes. The test is limited to a 16GB portion of the drive, and the drive is empty save for the 16GB test file. The primary score we report is an average of performances at queue depths 1, 2 and 4, as client usage typically consists mostly of low queue depth operations.
The SM2260 sample delivers better random write performance than Samsung's 950 PRO, but it can't match the more recent MLC-based NVMe SSDs.
The SM2260 also beats the Samsung 950 PRO on power consumption and efficiency, but against the more recent competition it fares poorly.
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Performance scaling for the SM2260 is rough as it runs out of SLC cache and potentially begins to thermally throttle as the test progresses to higher queue depths. Its average of around 450 MB/s during the second half is substantially less than what most of its closest competitors manage even when they are thermally limited.
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BrokenCrayons - Friday, February 17, 2017 - link
It seems like power consumption and consistency are both problems. Consistency can probably be addressed through tuning and optimization of firmware, but power consumption is probably something that can't be fine-tuned away. NVMe drives aren't as power friendly as SATA, but the inefficiencies of some recently reviewed SSDs here on Ananatech certainly seems to throw a spotlight on the problem. Between that and thermal throttling, the NVMe storage picture isn't very rosy just yet.KAlmquist - Friday, February 17, 2017 - link
Even with 25% overprovisioning, I see a 1 second interval at the 3350 mark where the IOP's fall to zero. Fortunately, the performance consistency of this SSD seems more in line with its competitors on the trace-based benchmarks (The Destroyer, etc.).The sequential read performance at queue depth 1 is lower than that of budget SATA SSD's like the MX300. At higher queue depths, the sequential reads are faster than anything a SATA SSD can manage, but queue depths of 1 are not uncommon in a desktop environment.
vladx - Saturday, February 18, 2017 - link
Now we can see why Micron cancelled its' NVMe SSD using the SM2260, it's simply not competive.Drumsticks - Saturday, February 18, 2017 - link
So what's a good roundup conclusion on the current state of NVMe drives? If we want to pick one up this year, where does the performance go from "bad for NVMe" to "not Samsung but still pretty good!"? Plextor?vladx - Saturday, February 18, 2017 - link
Indeed Plextor M8Pe seems to be the best buy option at the moment in the NVMe space.Drumsticks - Saturday, February 18, 2017 - link
That's what I was thinking. $220/$240 for the 500GB model right now. So much more than it used to be. Do we have any news on whether anything constraining nand supply will be alleviating any time soon?vladx - Saturday, February 18, 2017 - link
The supply problems most likely will be gone after Chinese companies will flood this market in 2018. But it could happen sooner than that depending on how fast will Toshiba/Western Digital will be rolling up their own 3D NAND supply.Chaser - Saturday, February 18, 2017 - link
"and the Plextor M8Pe is very slightly faster."AbRASiON - Sunday, February 19, 2017 - link
If this is CHEAPER than an MX300 it's an incredibly good bargain. The MX300's are really really well priced. I'd consider it if it's dead, dead cheap.The 960 Evo / Pro is a joke, sure it's fast but in real world usage, it's ridiculously expensive.
Make the 1TB version of this for $250 US or less and I'm very much in. (I doubt it will though)
StrangerGuy - Sunday, February 19, 2017 - link
I know right, Techreport tested the 960 Evo/Pro are both so close to yesteryears SATA3 SSDs in real-world load times that they are easily within the margin of error. I don't care about how NVMe is able to reach uber fast raw speeds that has zero use to me or to 99% of the people out there, but a hypothetical SSD with half the raw transfer speed of current SATA3 SSDs for 2x the capacity per dollar? That's a real bargain.