weird Asus Maximus Formula II issue

With my AB9-Pro, I overclocked my Q6600 to 3.0 ghz (333mhzx9). Both core temp and windows vista reported the same speeds and I was happy. However I upgraded to a maximus II and overclocked to 3.2ghz (400x8). Now widows vista reports my speed at 3.6 ghz while core temp reports 3.2 ghz. This isn't really a big deal as my temps are fine and system is stable but I have to know if this is normal. Does anyone else have this issue when messing with their multiplier?