Gadgets

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Gadget (noun): a small mechanical / electrical device or tool, especially an ingenious or novel one.

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AMD 3D V-Cache CPU memory used to create incredibly fast RAM disk (www.techspot.com)

submitted 11 months ago by Stiven_Crysis@alien.top to c/gadgets@hardware.watch

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[–] sypwn@alien.top 1 points 11 months ago

There are a bunch of parts of a PC that all have the same job of storing data, but the speeds at which they can do that are wildly different.

HDD: slooooooooooooooooooooooooooooooooooooooooow
SSD: sloooow
RAM: faaaaaaaaaaaast
CPU cache: faaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaast

"So why not get more of the fastest stuff?" Because a) it's way more expensive than the slower options and b) for CPU cache specifically, there isn't enough physical space on the CPU die to fit much more. (This is why AMD's "3D V-Cache" was a breakthrough, being able to fit more cache on the die.)

This guy decided to take his CPU cache, and make it pretend to be an SSD. So the tools designed to check SSD speeds try to measure it and report insanely high numbers (because it's faaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaast)