i7 memory and overclocking question

[MeatLoaf]

Thinking of going for an i7 rig and wondered if the memory you pick will limit your overclock, for example PC6400 would only take an E8400 to 3.6Ghz without overcloking the RAM on an intel board.

So, if i was to buy 6Gb ( 3x2Gb ) of normal Corsair 1333Mhz stuff how far could i overclock an i7 920?

 

[MeatLoaf]

Thanks, i think thats the question i should have asked in the first place about dividers, as on previous intel boards you couldnt run at less than 1:1 wheras on nvidia boards let you run the run the RAM at pretty much any speed