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World's fastest Flash memory developed: writes in just 400 picoseconds
(www.tomshardware.com)
This is a most excellent place for technology news and articles.
The speed of many machine learning models is bound by the speed of the memory they're loaded on so that's probably the biggest one.
Unfortunately this 1 bit / 400 picoseconds metric is 10x slower than GDDR7. The applications for this will be limited to things that need non-volatile memory.