Originally Posted by Forceman
I think it's more that Intel realized that desktops CPUs were far outstripping the software requirements, and shifted focus to areas where it hadn't. Intel is very proud of the performance/watt improvements of Haswell - that's pretty much all they've been trumpeting - they just don't seem to see a need for more desktop power.
That's a hasty assumption. For all we know, Intel can't increase performance very much anymore, and instead are focusing on other things because they're forced to. It's marketing's job to make whatever engineering puts out look as good as possible. We've seen it with Bulldozer, Fermi, and it's been a part of enthusiast life for years.
Personally, I don't see why Intel would stop moving towards improvement if they could. All of that would trickle down to lower models, which would make them have better price to performance, which would hit AMD where it's strongest.
Looking at 2600k and going "see, Intel has enough power for everything!" is very short-sighted. Intel ships a lot of chips in the 1ghz to 2ghz mobile range. 3.9ghz single thread turbo is pretty rare in the average joe's laptop.
But Intel creating a chip that can take more heat is ridiculous. It's on the same process node first of all, so it's pretty much impossible to make massive changes, and why would you make a mobile chip that has higher heat dissipation requirements? That means heavier laptops, thicker laptops, fat tablets, and loud fans.