The 486 killer app was DOOM. It was butter-smooth at 20 fps if you also had a VLB graphic card.
The 486 DX2 66MHz was the target platform for gaming during almost two years (1992-1994). That was an huge achievement back in the days to be at the top that long.
I wonder, I wonder where one could find a good book about the software architecture of that game… oh, well
I distinctly remember having a Strike Commander poster in my bedroom saying “Strike really flies on a 486 DX/2”. Fond memories indeed.
Doom was released end of '93. In 1992 most of us were in the 286 -> 386 upgrade wave and a 486-33 was easily at $2.5k+ ($5.5k in today's terms). The 486 DX2 66 was a good choice even 1994-1996.
https://en.wikipedia.org/wiki/VESA_Local_Bus for the younger crowd.
The DX/2 66 is a true legend of a chip. It was so good. The final nail in the coffin for the Amiga and for 68k. I love the Amiga, but it just didn’t Doom.
Before it, you could claim that a 68040 was kinda-sorta keeping up with the 486 and that the nicer design and better operating systems of other computers made up for the delta in raw performance, but the DX/2 66 running Doom was the final piece of proof that the worse-is-better approach of using raw CPU grunt to blast pixels at screen memory instead of relying on clever custom circuitry was winning.
Faced with overwhelming evidence, everyone sold their Amiga 1200s and jumped ship to that hated Wintel platform.