Intel peaked at $73.94 in September 2000. It's currently $28.99. In the interim there have been no splits.
NVidia has split 5 times (cumulative 48x) since 2000. It closed 2000 around $2.92. It is currently $389.93. Totally gain 6400x. If you ignore the last 12 months, NVidia's last peak was $315 in 2021, for a total gain of 5178x. -ish.
Meanwhile the hedge funds and institutional investors are just trying to ride the momentum while it lasts, which could be for a while.
Nvidia is pricing on actual revenue growth (~16%?) and projected growth (~20%). Since 2016 they've been killing it.
AI will turn into a bubble when unrelated companies begin being priced like that, without historical or current revenue growth to back up their projections, simply by virtue of being AI-associated.