Just got word from Martin that he's posted a new guide! So check out what he's got to say.

A comparison of memory bandwidth at 133Mhz FSB 133FSB with 166Mhz memory and pure 166Mhz FSB memory bandwidth compared. A bit of ranting at the manufacturers.

If you'd like to know how much more bandwidth you'll see by using a 166Mhz FSB then give this article at least a look! Asynchronous bus VS True FSb memory bandwidth comparison @ Mods4me.com