It defines a page table hierarchy of three levels (instead of two), with table entries of 64 bits each instead of 32, allowing these CPUs to directly access a physical address space larger than 4 gigabytes (2 32 bytes). PAE was first introduced by Intel in the Pentium Pro, and later by AMD in the Athlon processor. Is a memory management feature for the x86 architecture. In computing, Physical Address Extension ( PAE), sometimes referred to as Page Address Extension, JSTOR ( March 2014) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: "Physical Address Extension" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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