History of Processors By Tahuru Jan 1, 1978 Intel 8086 4.77MHz Jan 1, 1982 Intel 286 6MHZ - 12.5MHz Jan 1, 1983 AMD Am286 8MHz - 20MHz Jan 1, 1985 Intel 386 16MHz - 33MHz Jan 1, 1989 Intel i486 25MHz - 100MHz Jan 1, 1991 AMD Am386 12MHz - 40MHz
