| You have to look more far back than just the Pentium 4 days. Intel absolutely were some of the greatest innovators on the industry if you look at 70s, 80s and 90s. I would say they simply were the best, but dropped the ball at least when AMD64 became a thing. How the mighty have fallen... It's hard to overstate Intel's importance in regards to the modern CPU: they invented the microprocessor itself. (Though I'd like to state it's a bit controversial whether they only were the first to come up with a commercially available one or whether they actually invented the concept itself) Also, there are many things outside the CPU that we take for granted today that were of Intel's innovation. A great example would be PCIe that Intel invented and essentially standardized. More recent example would be USB4. Regarding CPUs they have some truly legendary chips, like the Intel 8086. This chip from the 70s is still in use today in your everyday products (as a clone though). It can be found TODAY in common products like computer mice, keyboards, AC, TV remotes and so on. Anything that is a commodity and needs some simple processing power has usually some derivative of 8086 inside it, granted ESP32 and such are taking over nowadays. Of course the x86 instruction set comes from that very chip. I guess the name speaks for itself how big of a thing that was. There's too much to fit inside one comment about how innovative Intel truly used to be, but they have a pretty good page for their history here: https://timeline.intel.com/ |
Look at the Core series - moderately incremental improvements for nearly two decades now? Many of which have significant, unfixable design flaws. AMD got their act together, and with significantly fewer resources ended up totally leap-frogging Intel in nearly all CPU metrics. How did this not happen at Intel after all these years?
AMD had some objectively better CPU's during the Athlon era - until they ran out of money mostly due to Intel's anti-competitive behavior.
The "what-if" scenario is interesting to ponder...