AMD64

English

Etymology

From being a 64-bit architecture developed by AMD.

Proper noun

AMD64

1. (computing, usually attributive) The 64-bit version of the x86 instruction set architecture (as opposed to the original 16-bit x86 architecture, or to the 32-bit version of the x86 architecture, also known as IA-32, i386, or x86-32).

   The AMD64 version of this Linux distro has higher performance than the i386 version, and doesn't suffer from the severe RAM limits imposed by 32-to-36-bit addressing.

Usage notes

AMD64 is mostly used in the context of Unix and Linux operating systems; Windows systems refer to this architecture as x64. System-agnostic discussions tend to use either x86-64 or AMD64. In all cases, each of these three terms are almost always used attributively.

Synonyms

• x64
• x86-64

Hypernyms

• x86 (broad sense)

Coordinate terms

• x86-16 (16-bit x86)
• i386, IA-32, x86 (narrow sense), x86-32 (32-bit x86)