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Why we don't have 128-bit CPUs
(www.xda-developers.com)
This is a most excellent place for technology news and articles.
Is this a question?
We haven't even come close to exhausting 64-bit addresses yet. If you think the bit number makes things faster, it's technically the opposite.
It's a link to an article I found interesting. It basically details why we're still using 64-bit CPUs, just as you mentioned.
Comment OP must never learn anything new. Good find.