Wednesday, February 2nd 2022
Western Digital Launches the WD Black SN770 DRAM-less NVMe SSD
Western Digital has expanded its WD Black series of SSDs with yet another model today and the SN770 seems like yet another dilution of the Black brand, as it's WD's second PCIe 4.0 DRAM-less Black series drive. On the upside, capacities range from 256 GB to 2 TB, unlike the SN750 SE which tops out at 1 TB and sequential speeds are also up, with read speeds rated at up to 5150 MB/s and write speeds of up to 4900 MB/s. This is still a far cry from the SN850, which should be considered the only high-end consumer SSD from WD at the moment.
WD did also provide some random performance numbers in the shape of up to 740K IOPS read and 800K IOPS write, which should make this one of the fastest DRAM-less SSDs currently on the market. WD claims the SN770 is 20 percent more power efficient than the SN750 SE, without providing any further details. WD provides a five year warranty for all SKUs and have rated the drives at a 1.75 million hour MTTF time, with the 1 TB SKU having a 600 TBW or 0.33 DWPD write endurance rating. Pricing starts at US$59.99 for the 250 GB SKU, with the 500 GB SKU coming in at US$79.99, the 1 TB at US$129.99 and the 2 TB at US$269.99. This places the 1 TB SKU at US$30 less than the SN850 and the same amount more than the SN750 SE. The SN770 is available as of today.
Source:
Western Digital
WD did also provide some random performance numbers in the shape of up to 740K IOPS read and 800K IOPS write, which should make this one of the fastest DRAM-less SSDs currently on the market. WD claims the SN770 is 20 percent more power efficient than the SN750 SE, without providing any further details. WD provides a five year warranty for all SKUs and have rated the drives at a 1.75 million hour MTTF time, with the 1 TB SKU having a 600 TBW or 0.33 DWPD write endurance rating. Pricing starts at US$59.99 for the 250 GB SKU, with the 500 GB SKU coming in at US$79.99, the 1 TB at US$129.99 and the 2 TB at US$269.99. This places the 1 TB SKU at US$30 less than the SN850 and the same amount more than the SN750 SE. The SN770 is available as of today.
50 Comments on Western Digital Launches the WD Black SN770 DRAM-less NVMe SSD
amazon has the real black 2TB SN850 for $275, so yea, I'll do a super HARDDDDD pass on this one :)
On the other hand, **slow clap** well done Western Digital! Instead of just silently switching components on the SN750 SE, you launched a new product with a different name and everything like it should be done. It's a low bar to clear, but congrats on clearing it nevertheless, here's your star
I have both SN550s and SN750s so nothing against the two of them. I guess on the bright side, WD will teach some impulsive buyers a hard lesson that "bigger number + PCIe 4.0 != faster"......?
WD drives have some weird issues time to time with some HW combos... much more than average... I am kinda offed from them only because of that.
There was also that whole ordeal about SN850s underperforming on chipset lanes. Think WD released a firmware update for that one.
That's not to say I would avoid WD, I'd just not pick a board that puts all its bets on a single chipset M.2 slot (eg. X570 ITX/TB3). Their RMA process is still top in this neck of the woods.
IF this OLC based, the moron that decided to put the "WD Black" nomenclature on this drive needs to be fired and never allowed to work in the industry again.
If this is TLC with an advanced SLC caching mode, as long as the performance numbers are excellent, this might be something good.
To arrive at a logical conclusion we need the detailed specs and benchmarks.
www.anandtech.com/show/17238/western-digital-introduces-wd_black-sn770-a-dramless-pcie-40-m2-nvme-ssd
Reading the comments, some say the performance is almost up to par the DRAM equipped drives. Be that as it may, DRAM and DRAM-less should not be both under the same name.