The Intel80486DX microprocessor contains all the features of theIntel386 microprocessorwith enhancement to increase performance.It integrated 8KB cache & 80387 coprocessor on chip while remaining100％binary compatible with previous member of the 80*86 family.
80486系列CPU简介
(1)80486DX：
英特尔80486DX微处理器包含了英特尔公司80386微处理器的所有功能，并在其性能上有所增强。它将8KB的高速缓冲存储器和80387协处理器也集成到了同一块芯片上，并保持了在二进制码上能与先前的80*86家族百分之百兼容。(郭志忠)