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Definition: DX2

A clock-doubled 486 CPU. The internal speed was doubled without changing the chip's external connections. For example, the 486DX2/66 had an internal speed of 66 MHz, while its external bus from the CPU to RAM ran at 33 MHz. See Speed Doubler and iCOMP.

     DX2 CPU       Internal    External
     486DX2/66     66 MHz      33 MHz
     486DX2/50     50 MHz      25 MHz
     486DX/50      50 MHz      50 MHz

     DX4 CPU       Internal    External
     486DX4/75     75 MHz      25 MHz
     486DX4/100    100 MHz     33 MHz