Processor	Date	Transistors
4004	1971	2250
8008	1972	2500
8080	1974	5000
8086	1978	29000
286	1982	120000
386	1985	275000
486DX	1989	1180000
Pentium	1993	3100000
PentiumII 	1997	7500000
PentiumIII	1999	24000000
Pentium4 	2000	42000000