Is this the end of free speech in anandtech? I'm very very worried!!!!!!!!!!!
I agree. But such shifts don't happen overnight. Think a decade+.
Either that or Intel's architecture team is working wonders out there lmao.
The very fact that E cores are so dense that it's comparable to ARM ISO-process level and that AMD "lost" major density advantage in Zen 4 suggests it's the focus on crazy frequency that makes the cores absurdly large.
Now I bet you it's not just tacking on new high density cells and all done. This needs a paradigm shift. The P-core team needs to change their paradigm. This requires a big shift. Like we saw diminishing returns on the high end with Moore's Law, so Apple changed the paradigm and took advantage of it to make it small and power efficient. Intel and AMD hasn't embraced it so they are stuck making laptop chips that doesn't last as long on battery life.
"Let's reduce the Pmax from 5.5GHz to 4.5GHz"
"Bring pipeline stages down from 18-20 stages to 12-14 stages"
"Back off a bit on using ultra high performance cells"
5 stages result in ~10-12% performance gain. You can either relax density in critical cells(such as L1 and L2 caches), or use faster 3-cycle latency. Your mesh, ring and other interconnects are easier to clock to the speed of the core. It'll simplify the circuit so you save power plus reduce transistor count. 15-20% per clock increase, but few % overall(clock x uarch) loss.
The uop cache can be thought of as allowing those high frequencies and minimizing the downsides. Of course it's not free, even though it does a very good job. Cause when there's a uop cache hit, the 18-stage CPU becomes a 14-stage CPU. This is why Gracemont does not require it.
Both companies are stuck in the mini-Netburst/Bulldozer era of thinking, where they look at GHz. Not as crazy as back then, but needs a shift again.
But I can see why it'll take a lot to change. Because the extra bit of performance you get is the reward you get from the absurd frequency(not as absurd as 20 years ago but still). But that last 10% comes at a big sacrifice.
In this case, competition is at fault. Cause if you don't have that lead, as vacuous as it might sound, reviews and the general impression will look negative for you. How did modern CPUs come to use so much power? Because unlike Netburst/Bulldozer, they did it gradually.