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80486 µarch
General Info
Arch Type	CPU
Designer	Intel
Manufacturer	Intel, AMD
Introduction	April 10, 1989
Phase-out	1995
Process	1 µm, 800 nm, 600 nm
Succession
80386 P5 K5

80486 was the microarchitecture for Intel's 80486 line of microprocessors as a successor to the 80386. Introduced in April of 89, 80486 was initially manufactured using 1 µm process (later 800 nm). For AMD, this microarchitecture was used for their Am486 and Am5x86 families. This architecture was superseded by Intel's P5 in 1992 and K5 in 1994.

Die Shot

• 1 µm process
• 1,200,000 transistors