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Why we don't have 128-bit CPUs
(www.xda-developers.com)
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this post was submitted on 23 Jun 2024
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Even the newest "64-bit" cpus are really just 48-bit (or 36-bit on low end) or if bleeding edge 56-bit physical adressing processors. This is the maximum amount of virtual memory a process can have access to. You could memory map all your hard disks an still have room to map more physical memory to VMA.