Below are various lists of microprocessors:

by architecture sizes

1-bit - 4-bit - 8-bit - 12-bit - 16-bit - 18-bit - 24-bit - 26-bit - 31-bit - 32-bit - 36-bit - 48-bit - 60-bit - 64-bit - 128-bit - 256-bit - 512-bit

by lithography processes

50μm - 20μm - 16μm - 10μm - 8μm - 7μm - 6μm - 5μm - 3.5μm - 3μm - 2.5μm - 2μm - 1.5μm - 1.3μm - 1.2μm - 1μm -

800nm - 750nm - 700nm - 650nm - 600nm - 500nmm - 350nm - 250nm - 220nm - 180nm - 150nm - 130nm - 110nm -

90nm - 80nm - 65nm - 55nm - 45nm - 40nm - 32nm - 28nm - 22nm - 16nm - 14nm - 12nm - 10nm - 7nm - 5nm - 3nm