PC processors entered the Gigahertz era today in the year 2000 with AMD's Athlon — AMD hit marketing gold with its 1 GHz Athlon, beat Intel by a nose

Consumer PCs have long abandoned the multi-GHz race for core count and NPU inflation.

Tom's Hardware

Those were awazing times.
Within 5 years I basically went from a 16 MHZ CPU to a 1,4 GHz CPU.

And going from minimal graphics card to a 3D-accelerated one was equally mind-boggling.

Progress after that era essentially felt like a technological standstill.

I even remember first heat spreaders and later fans on top of them on Pentiums, probably.
My Pentium 100 already had a (small) CPU fan, friend still had a 386 which only had a passive heat sink.
Yep, that’s what I remember, could phrase it better I suppose.