Why higher OC ?

[stuntmanSLim]

Why can a extreme mobo overclock a CPU higher than a Pro mainboard ? Extreme 5.2+ vs Pro 4.6,4.7,4.8 ?
What exactly does this,what parts if any gives the extreme better OCing...

 

[stuntmanSLim]

So its all about the 8 phase "Multilayer Polymer Capacitors (Super ML Caps)"...