okay my theory on boards with RDRAM 1066 plz confirm

okay here's my theory plz tell me if i am right or not... okay so rdram 800 must be set at 4x to achieve 1066... so you get less of an overclock, right.... so you can set rdram 1066 at 2x to get the same effect... (533*2=1066) or is this only the new northwood chip cpus you can do this with? if you can do it with the good ol 'A' version of the northwood (set the mem to 2x and get 1066) you could quite possibly get a better overclock than boards with ddr am i right?

800 = 100 x 4 x 2
1066 = 133 x 4 x 2

100; 133 = fsb
4 = qaud bumped multiplier, can be changed to 3 in bios (normally for pc600 ram)
2 = dual rambus

If you want your pc800 ram to run at 1066, you need to rise your fsb to 133 and hope that it can run at that speed (this is ofcourse an overclock).