For what cooling of the processor it is necessary?
While - any, but it, unconditionally, a matter of time.
In the beginning processors, it were such , and perfectly did without heat sinks. In some years, there were small heat sinks.
Years went, heat sinks became all above, then there were fans. At first it were tiny , diameter became more and more.
It is a little more, and heat sinks turned to high towers, fans turned to powerful turbines.
And here, already for acceleration i9-7900X a good form the powerful dropsy is considered. 200 watt.
As early as years five, also will be both liquid metal, and 500 Watt. Marketing, the prestige, all affairs.