Subsequent 32-bit 386, 486 and Pentium CPUs also included a 16-bit operating mode to conform to the original standard in order to run all the DOS and 16-bit Windows 3.x applications on the market.
All in all, this glimpse at the internals of a Pentium processor provides a fascinating snapshot of high-end Intel semiconductor prowess in the early 1990s.
The most recent Atom used in laptops is from 2016 and it was hardly fast back then. Up until recently, there were separate brands for Celeron and Pentium processors. Intel has now bundled both of them ...