Stumbled on to this last night with IDCC.

Look at this below. I'm running the 1333 strap + 9% = 363fsb with mem at 667 which should be 4:5 ratio or 454MHz on the mem.

CPUz says it's 454Mhz.
IDCC says mem is DDR2 727 or 363Mhz which is 1:1 ratio

Which one is right