x64

English

Etymology

Contraction.

Proper noun

x64

(computing) Contraction of x86-64.

Synonyms

AMD64
x86-64

Hypernyms

x86 (broad sense)

Coordinate terms

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

Usage notes

x64 is used almost exclusively in the context of Windows operating systems; Unix and Linux systems use AMD64, while system-agnostic discussions tend to use either x86-64 or AMD64.

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