Thanks Gary,
those 2 videos you linked were very interesting.
here's a link:
https://en.wikipedia.org/wiki/Extrem...et_lithography
and here:
https://www.quora.com/Why-is-it-said...PU-lithography
So it seems we've reached a limit on how small we can make transistors
and we've reached a limit on the clock speed at around 5 GHz -
the only solution is chiplets -
connect many smaller areas of Silicon chips together to make a much larger system -
hence the 96 core AMD chip that this thread is about.
How they actually connect those chiplets together - they didn't say in your videos -
I suppose a lot of it is secret?
They are not talking about radiation hardness as 5nm lithography
would make chips sensitive to ionising radiation.
It makes me worry if those 5nm chips might fail in 5 to 10 years time
from the cumulative effects of radiation?
I know on spacecraft it's a problem and is why they use the old CPUs with very large transistors 500nm and larger.
CPUs such as the Intel 80486 and the RAD6000.
https://www.cpushack.com/space-craft-cpu.html
cheers
Allan