Comments on: WD_Black SN850 PCIe 4.0 NVMe SSD Review – Vying For That Top Spot

By: Mark N.P

Mark N.P — Sun, 17 Sep 2023 23:16:30 +0000

Hi Les! Thanks for all the brilliant work. Really appreciate the info about the boot times of the ssd drives.
I was rather astounded when I saw the info about the WD_Black SN850 PCIe 4.0.

So I’d like to just check with you – when you refer to OS data/file sample – does it directly refer and relate to the boot times that you can get from the OS booting please?(hate slow boot times)

Coz if it does, the WD_Black SN850 PCIe 4.0 is insane and thus the drive to get i guess…

Do let me know please. Sincerely appreciate your reply! Thanks again Les!

By: Sheldonng

Sheldonng — Thu, 31 Dec 2020 08:26:54 +0000

In reply to roots.

970PRO — MLC
980PRO — TLC

but 980 PRO is 30% cheaper than 970 PRO

By: roots

roots — Sun, 29 Nov 2020 17:06:52 +0000

Hi,
@thessdreview staff: thanks for the review! When I checked the PCMark8 comparison chart I was a bit surprised that the Samsung 970 Pro 1TB is still ranked 2nd, while the 980 is tailing way behind. Any ideas why the difference between the two drives is that big?
Cheers,
r.

By: Dave

Dave — Fri, 20 Nov 2020 03:26:15 +0000

The Real World File Transfer Comparison is amazing! I suspect that with some firmware tweaking they’ll speed up the music and photo transfer as well.
A quote from your review:

“Not only are the throughput and IOPS high sequentials looking very good, but also, low 4k random read and write throughput is solid.”

This reminds me of one of the many reasons I bought a 512GB Crucial MX100, based on your review on June 12, 2014:

https://www.thessdreview.com/our-reviews/crucial-mx100-ssd-review-256-512-gb/

“While such high IOPS are nice to see, most consumers should be looking at the 4K performance of the drive. High queue depth speed results over queue depths 3-5 usually don’t matter much for typical consumer desktop usage.”

Right after you released this review, I built a new PC using the MX100 with all new components. I’m still using the MX100 (with all of the same components), but I plan on upgrading after we see finished-product E18 reviews, and AMD Zen3 CPUs become more plentiful.

Since I’m one of the “typical consumer desktop” users, I still pay very close attention to the random 4K Q1T1. While I don’t know if this drive reviewed here is the fastest at random 4K, it still looks very good to me.
In the meantime, I’m still stuck with a sequential read/write around 500 MB/s and random 4K read/write of 33.8 and 136.1 MB/s. My PC might be as slow as molasses compared to all of the new hardware, but it still works okay for being all 2014 hardware. I think I heard somewhere that patience is a virtue.
Seriously though, it’s time to build a new PC with all new components, except for the case (Antec Solo).
BTW, Crucial Storage Executive still reports that my MX100 is almost like new. It’s been a very dependable SSD.

Thanks for another excellent review, Les.