|(processor)||Intel 486DX - One of Intel's Intel 486 family of
microprocessors (one of the last before the Pentium). The
486DX has a working built-in floating point unit (FPU). The
Intel 486SX is effectively a DX with the FPU disabled. The
DX has a pin to select the external data bus width (16 or
The Intel 487SX is a 486DX with a 486SX pinout.