It's just a guesstimate. From TFA: >"If we take a look at our average system idle power in our own reviews which is around 55W, this would make the Intel CPU a

It's just a guesstimate. From TFA: >"If we take a look at our average system idle power in our own reviews which is around 55W, this would make the Intel CPU around 125W, whereas the AMD CPU would be around 75W" I have no idea what percent of idle power consumption the cpu should be responsible for, from their treatment I would assume negligible.