Review: Silicon Power XD80 2 TB (NVMe M2 PCIe 3.0 X4 SSD review)

by Hilbert Hagedoorn on: 06/24/2021 01:31 PM | source: | 2 comment(s)

Powered by a Phison 5012-E12 controller and paired with 3D TLC NAND Silicon Power offers something rather attractive sheer NAND volume storage versus value. The XD80 is not targeted at an enthusiast audience but rather is released as a mainstream high-capacity NVMe SSD series with very decent performance.

Read the review here.

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DG21
Senior Member

Posts: 120
Joined: 2017-02-27

#5923562 Posted on: 06/24/2021 05:15 PM

I'm getting more & more sceptical about the SLC-cache... I think, this could be an Achilles heel ...

I know, that SLC can be written a 100000 times, so 1GB of SLC-cache should be able to endure roughly 100TB of writes...

But what happens, in case that cache dies?

Drives like a 960 Pro or 970 Pro use LPDDR4 instead of an SLC-cache of any kind and Optane is save as well...

But I saw comments on mindfactory, where drives especially with SLC cache broke down, although they neither reached the TBW, nor the 3-5 years of warranty...

Does somebody has an idea or experience about that point?

Thanx in advance,

TJ

Hilbert Hagedoorn
Don Vito Corleone

Posts: 44096
Joined: 2000-02-22

#5923831 Posted on: 06/25/2021 08:47 AM

The SLC cache is nothing more than a partition of the existing NAND in use. If there are reports that SLC caches die, then it might as well have been the TLC partition, it's physically the same NAND.

Same wearing routines are applied to SLC as well, e.g. if a cell dies, it gets disabled. I've been testing SSDs every since the very beginning, and this is the first I am hearing about this as a theory.

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