this post was submitted on 04 Aug 2023
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Explain Like I'm Five

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Why do SSDs have a more limited number of times data can be written to them, but RAM memory can handle loads of re-writes? (lemmy.world)
submitted 1 year ago by lemmington_steele@lemmy.world to c/explainlikeimfive@lemmy.world
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In a similar vein, why can we not use the technology of RAM to prolong the life-cycle of an SSD?

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[–] someguy3@lemmy.ca 1 points 1 year ago (2 children)

Do SD cards and usb sticks also use NAND?

[–] gregoryw3@lemmy.ml 2 points 1 year ago

Yes but usually cheaper/lower quality.

[–] mindbleach@lemmy.world 2 points 1 year ago

Any solid-state media you can access is almost certainly NAND. There's a second kind of flash memory called NOR, but it's gradually disappearing. I think it's relegated to EEPROMs and similar embedded uses. The number of applications where its advantages matter are outweighed by the seventeen bajillion dollar market for higher-capacity NAND. All the research money and foundry tech are going toward the one that'll let them sell 1 TB SSDs for $20.