Your memory and cpu speeds are right. Memory is 400Mhz and cpu is 166Mhz x 2 = 333Mhz.
If you want to use the memory frequency ( by spd) then yours will be 120%. The rreason for this is your memory is running 20% faster than your cpu. The cpu speed is always 100% and the speed of the memory is measured below, equal (syc) or above the cpu speed. ie.
166 x 120% = 199.2 Mhz
near enough 200Mhz.