Intel 486DX

Intel 486DX

(processor)One of Intel's Intel 486 family ofmicroprocessors (one of the last before the Pentium). The486DX has a working built-in floating point unit (FPU). TheIntel 486SX is effectively a DX with the FPU disabled. TheDX has a pin to select the external data bus width (16 or32).

The Intel 487SX is a 486DX with a 486SX pinout.