486          :   1.2 million transistors
Pentium      :   3   million transistors
Pentium Pro  :   5.5 million transistors
Pentium 2    :   7.5 million transistors
Nvidia TNT2  :   9   million transistors
Alpha 21164  :   9.3 million (1994)
Alpha 21264  :  15.2 million (1998)
Geforce 256  :  23   million transistors
Pentium 3    :  28   million transistors
Pentium 4    :  42   million transistors
P4 Northwood :  55   million transistors
GeForce 3    :  57   million transistors
GeForce 4    :  63   million transistors
Radeon 9700  : 110   million transistors
GeForce FX   : 125   million transistors
P4 Prescott  : 125   million transistors
Radeon X800  : 160   million transistors
P4 EE        : 178   million transistors
GeForce 6800 : 220   million transistors