Intel 80486
From Computer History Wiki
The Intel 80486 is the successor to the Intel 80386 in the Intel x86 line of microprocessors. It is basically the same CPU as the 386, but includes the functionality of the Intel 80387 floating point unit, and an 8K byte cache.
Implementation changes mean about half the instructions execute in one clock cycle, instead of the two used in the 386, speeding it up considerably.
Its replacement was the Intel Pentium.
