Intel 486DX2 Microprocessor

As the quest for the computation crown continued into Intel's fourth generation of microprocessors, the 486 family grew with the use of internal clock doublers and triplers, creating the then-"speed demon" DX2s and DX4s. In March 1992, the 486DX2 was released with an external clock (bus) speed of just 25 MHz, but with a "lightning fast" internal clock speed of 50 MHz.