Open Source Linux
Jun 21, 2025 · Fundamentals
Why Are 32‑Bit CPUs Called x86? The Quirky History Behind Intel’s Naming
This article traces the quirky lineage of Intel’s numbered processors from the 4004 to the Pentium era, explains why the 32‑bit architecture is called x86, covers AMD’s x86_64 extension, Microsoft’s Windows naming, and clears common misconceptions about bit‑width naming.
AMD64CPU architectureIntel
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