Western Digital WD_BLACK SN850 NVMe PCIe 4.0 SSD Linux Performance

[phoronix]

Phoronix: Western Digital WD_BLACK SN850 NVMe PCIe 4.0 SSD Linux Performance

This month Western Digital introduced the WD_BLACK SN850 as the latest PCI Express 4.0 solid-state drive hitting the market. The WD_BLACK SN850 is a surprisingly strong performer if looking to upgrade to PCIe 4.0 solid-state storage, competing with the fastest of the consumer drives currently available.

http://www.phoronix.com/vr.php?view=29746

[willmore]

TIL: The WD drive is pretty darn good. The Samsung is trash. The Crucial drive is probably a good deal price/performance wise.

[Dhoulmagus]

Would like to see same benchmarks with F2FS and with F2FS+compression

[darkbasic]

Why does the Samsung suck that much? The Pro line used to be good...

[Zan Lynx]

Typo in the article: Samsung 980 PRO isn't QLC-based. It uses TLC with a SLC cache.

Overall, the Samsung 980 PRO numbers presented in the article are not credible. According to other reviews, 1TB Samsung 980 PRO has a sustained write performance of 2 GB/s - not 150 MB/s.

https://www.anandtech.com/show/16087...e-4-ssd-review

As far as I remember from 980 Pro reviews it totally depends on if the SLC cache has cleared out. If the review runs a large write test at any time, it could fill up the cache. It takes an unknown amount of time, but at least a couple of minutes, to be sure that the SLC has flushed out all of the writes.

The 980 Pro performance is dire if you fill the cache and continue to write. Puts its "Pro" designation in doubt.

[pal666]

Overall, the Samsung 980 PRO numbers presented in the article are not credible. According to other reviews, 1TB Samsung 980 PRO has a sustained write performance of 2 GB/s - not 150 MB/s.

this article shows 980's sequential write faster than others at 4726 mb/s.

[pal666]

subj looks like good contender for the spot between optane and hdd in storage hierarchy. but i'll wait for results of products on phison e18, which should be available in december

[Space Heater]

Does WD allow you to update the firmware on this drive from non-Windows operating systems? If not, don't support vendors who refuse to support your use case.

[rene]

yeah, well, in contrast to the Samsung 980 Pro it is at least in stock, and faster, too ;-) https://www.youtube.com/watch?v=fykbyCsWX-M

[Congelli501]

It would be interesting to have a pci-e 4 ssd running on a pci-e 3 line on those tests, to see if real world usage really benefits from pci-e 4.