x86-64

proper noun

A superset of the x86 instruction set architecture, providing additional support for 64-bit addressing while remaining mostly backward compatible with older applications.

Similar
AMD64x64
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Meanings

proper noun
  1. computingA superset of the x86 instruction set architecture, providing additional support for 64-bit addressing while remaining mostly backward compatible with older applications.

    Synonyms: AMD64, x64

Synonyms & antonyms

proper nounA superset of the x86 instruction set architecture, providing additional support for 64-bit addressing while remaining mostly backward compatible with older applications.

Similar
AMD64x64
Also see
amd64
Cite this entry
APA

x86-64. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/x86-64

MLA

“x86-64.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/x86-64. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “x86-64,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/x86-64.

Source: x86-64 on Wiktionary, CC BY-SA 4.0.