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Aug
16
accepted Why doesn't “add more cores” face the same physical limitations as “make the CPU faster”?
Aug
16
comment Why doesn't “add more cores” face the same physical limitations as “make the CPU faster”?
@user20574 You couldn't, if you started with a room that would fit only one computer, unless you found a way to shrink the computers dramatically.
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Aug
15
comment Why doesn't “add more cores” face the same physical limitations as “make the CPU faster”?
'multiple cores is like having multiple "computers" on the same device.' Right, but my confusion was, how do you fit them all in there? I thought "we can't go faster" was a symptom of "we can't shrink things much more."
Aug
15
comment Why doesn't “add more cores” face the same physical limitations as “make the CPU faster”?
"you need more physical space to put the extra core. However, CPU process sizes constantly shrink a lot, so there's plenty of space to put two copies of a previous design" Maybe this is getting at my original confusion. I thought "faster chip" == "higher density of switches", so I thought "To fit more cores, you have to shrink them. If you can shrink them, you are making them denser. If you can make them denser, you can make them faster. How are these not the same problem?" But I'm way out of my realm of knowledge here. :)
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asked Why doesn't “add more cores” face the same physical limitations as “make the CPU faster”?
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