I've noticed some stuff. The whole module aproach is to save diespace, the 2 ALUs and shared FPU is all about performance per mm2, and performance per watt. At the same time they made a tradeoff where they sacrificed die space for higher clocks. They have aggressive turbo and energy saving features, maybe the most effective ever.

In other words. They done everything the can to get high performance per watt and mm2, then they've done everything the can in translating this advantage to higher clocks and turbo.