Both CPUs can be used for gaming, but in terms of comparability, these chips are
completely different (one has a tripple count of the cores than the other, price, locked/unlocked, frequencies).
That is why I wrote about vibe of the video, not everything is in words and numbers. Steve had a troll gleam in his eyes...
Limiting power / frequencies of both 14900K and 7950X makes perfect sense to prevent overheating and to increase efficiency.
I have no problem accepting that 14900K will have a bit (if I remember correctly it is around a third) lower power efficiency caused by the old process it is made on, and that it is slower for gaming (I have a mid tier graphic card and I am limited by it, so it is not slower for me).
I view a 14900K as a building set you can use to build a CPU you want. I do not like how it is set out of the box.
I also do not like how AMD CPUs have thick small heatspreaders, are hard to cool and are set to hit temperature limits.
I also do not like that you do need to buy the frame for Intel CPUs, because the stock socket mounting mechanism really bends them. On the other hand, they have normal thin heatspreader and are easy to cool even at pretty high power draw, you really do not need to mod them (delid, etc) in any way.
I do not like idle power draw of AMD CPUs.
I have no doubt that the second gen of AM5 chipset/motherboards will be much more mature than the first gen. I think that the last gen LGA1700 is easier go get going and more reliable than the first gen AM5 boards. I think that X670E and 7800X3D are just a prelude to what AM5 can do this year.
7800X3D is not the best thing ever, it is a worst kind of gaming CPU for AM5 socket. (I am cunningly waiting for better things to come while surviving on an adjusted 14900K)
You can think about such stuff as above quite rationally and objectively without any gleam in your eyes.