AMD knows that its foundry partners, GlobalFoundries and Taiwan Semiconductor Manufacturing Corp, can’t take on Intel directly in the process game. So it has to be smarter about gating power on every part of the die to squeeze out efficiencies.
Intel’s current line beats everything in the FX-series by at least 35 watts and I doubt anyone outside of laptops can notice the difference. Actually, AMD makes an entirely different set of processors for laptops. Those APUs.
Steamroller specs leaked? Great, sure, whatever. Now let’s see them get delivered with all their transistors.