Sorry, I don't quite understand. Do you mean there may be diminishing returns on memory speed?

[QUOTE=TheMawn;353033]He is very far from being memory bandwidth bound as he has access to quad-channel RAM which is twice as fast as dual channel. It's as though he is running 4266 MHz memory which is enough to cover probably 8 GHz on four cores if such a thing were possible.[/QUOTE]

You're right; that is a quad-channel chip. Most i7's aren't.