During P4 Intel kept their footing with bribes. Article touches on this

"Some companies, notably Dell, remained Intel-only well into the 21st century,"

Dell was receiving $1Billion a year in bribes from Intel https://247wallst.com/consumer-electronics/2007/02/02/michea...

"The documents filed in District Court claim that there were $1 billion in kickbacks and payments."

That was the only way to make big boys plunge into Pentium 4 with Rambus fiasco.