>> The parts really did run 2x as fast or 4x as fast internally.
Actually, the Intel 486DX4 ran at only 3x the speed, despite the name. Intel couldn't use the DX3 name because of a trademark owned by AMD, who also had a part called the Am486DX4. The AMD part was also available with a 40MHz bus and a tripled 120MHz CPU clock.
Actually, the Intel 486DX4 ran at only 3x the speed, despite the name. Intel couldn't use the DX3 name because of a trademark owned by AMD, who also had a part called the Am486DX4. The AMD part was also available with a 40MHz bus and a tripled 120MHz CPU clock.