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Cake day: March 8th, 2025

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  • There is no 80486. It’s called the i486.

    There is no CPU with a model number of Pentium. Intel’s flagship CPUs, in order, were:

    • 4004
    • 8008
    • 8080
    • 8085
    • 8086
    • 80186 (for less than a month; model number A80186)
    • 80286 (model number A80286)
    • 80386 (later renamed to i386; model number A80386)
    • i486 (model number A80486)
    • Pentium (model number A80500, A80501, A80502)

    The i386 and i486 had multiple variants with suffixes to the model number (the 486DX and DX2 are often mentioned), and then the Pentium had enough variants that they incremented the model number a couple of times and then changed it completely; Pentium Pro and later CPUs have completely different model numbers.