AMD64

English Etymology From being a 64-bit architecture developed by AMD. Proper noun en 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). en 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 en AMD64 is mostly used in the context of Unix and Linux operating systems; Windows systems refer to this architecture as en x64. System-agnostic discussions tend to use either en x86-64 or en AMD64. In all cases, each of these three terms are almost always used attributively. Synonyms en x64 en x86-64 Hypernyms en x86 (broad sense) Coordinate terms en x86-16 (16-bit x86) en i386, en IA-32, en x86 (narrow sense), en x86-32 (32-bit x86)