Because Apple limited the CPU to only be able to use x amount of Watts, because otherwise the cooling/the power consumption would be outside of their "product design goals".

But they probably still advertise "latest Intel CPU with xyz GHz and blah blah amount of cores.". But that would be like buying a Ferrari with advertised "an engine capable of gazillion horsepowers", but having it limited to only be able to go up to 2000 RPM...

> But they probably still advertise "latest Intel CPU with xyz GHz and blah blah amount of cores."

From what I have seen of LTT, their biggest criticism of Apple is their tendency to emphasize the turbo boost clock speed when the CPU is nearly always being throttled (presumably below the base clock speed) due to the machine being unable to dissipate the heat.

If you want to see an example of Apple advertising the turbo boost speed in very large print, check out the "Overview" page on the 13" MacBook Pro.