IA-64

noun

An EPIC 64-bit instruction set architecture designed to allow relatively simple, cheap CPUs to execute many 64-bit instructions simultaneously and with potentially very high performance; developed by Intel in the late 1990s with the intent of replacing the older x86 architecture, but was delayed and proved uncompetitive with x86 (especially x86-64), seeing use only in Intel's own Itanium line of high-end CPUs.

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Meanings

noun
  1. computingAn EPIC 64-bit instruction set architecture designed to allow relatively simple, cheap CPUs to execute many 64-bit instructions simultaneously and with potentially very high performance; developed by Intel in the late 1990s with the intent of replacing the older x86 architecture, but was delayed and proved uncompetitive with x86 (especially x86-64), seeing use only in Intel's own Itanium line of high-end CPUs.

Origin

Initialism of Intel Architecture, 64-bit.

Full word history & related roots →
Cite this entry
APA

IA-64. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/IA-64

MLA

“IA-64.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/IA-64. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “IA-64,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/IA-64.

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