Computers & Electronics

WD Blue SN550 NVMe now has slower NAND

  • Last Updated:
  • Aug 30th, 2021 10:16 pm
[OP]
Member
Aug 30, 2009
262 posts
85 upvotes

WD Blue SN550 NVMe now has slower NAND

I purchased the WD Blue SN550 recently from the hot deals thread here:
amazon-ca-wd-blue-sn550-nvme-2tb-ssd-24 ... #p34857484

Turns out WD has switched out the NAND with slower performance component:
https://www.techspot.com/news/90928-wes ... udget.html
https://www.tomshardware.com/news/wd-bl ... c-runs-out
https://www.extremetech.com/computing/3 ... -slow-ssds

I didn't open my drive yet and promptly returned it to amazon for a refund.

It seems that this was not a good purchase for me anyway since the SLC cache on the SN550 is very small. Even moving video files would be enough to fill the cache, reducing performance significantly and very quickly.


I purchased this instead: ADATA XPG SX8200 Pro 2TTB ($260 ATL according to keepa and 3C)
https://www.amazon.ca/gp/product/B07TY2 ... Y3LN&psc=1

also available from newegg for the same price if you prefer.

The cache is much larger and much faster and when it fills the performance of the NAND is still better than the new SN550 performance. Reviews indicate that writes can be sustained by the SX8200 cache up to about 40 - 50 GB of data at 2,500 - 3,000 MB/s. This drive has a 5 year warranty.

For my use case which is moving large video files and VMs, this drive should perform much better than the SN550 for about the same price.

I hope this info is useful for someone.
9 replies
[OP]
Member
Aug 30, 2009
262 posts
85 upvotes
Thanks for pointing that out. Good for people to be aware. Everyone is swapping out components these days.

But the SX8200 pro is still a much better performing drive and the SX8200 hardware swaps did not result in poorer overall performance.

All the major sites have started to update their original SN550 reviews with results from the new hardware. You can see how it compares now to other drives.

I would say the cache size is a major consideration, and with the SN550's tiny cache, the significant performance hit on the new NAND is going to be easily noticeable.
Deal Guru
Feb 9, 2006
12912 posts
7668 upvotes
Brampton
This bullshit has to stop. Regulation has to come and stop this crap or at least enforce the existing laws on bait and switch.
Deal Guru
Feb 9, 2006
12912 posts
7668 upvotes
Brampton
So if all the vendors are shafting the end consumer what is the end consumer to do? Until they confirm with Intel, there's basically no safe bastion even if you were willing to pay more.
Deal Expert
Feb 24, 2018
24347 posts
31237 upvotes
tebore wrote: This bullshit has to stop. Regulation has to come and stop this crap or at least enforce the existing laws on bait and switch.
Regulation isn't required, contract law enforcement and industry standards should coalesce around consistent product delivery. Vote with your money and raise a raucous. There may be grounds for a class action, which is much more meaningful.

Regulation is the last resort, and not the recommendation of someone who worked with, or for, government.

Lawsuits are a thing.
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