same thing goes for both as far as putting out more power. the more you compress the air the hotter it gets and then you need to think about cooling it down. supercharging is nice for lower boost, turbo is good for highter boost. turbo doesnt take power to use it. super charger does and if you over drive the charger than it takes more and more power to run the charger. shit go with both a big turbo for top end and a supercharger for bottom and then when the turbo is spooled it will actualy make the charger not use any power because its forcing the rotors of the charger to spin and puts some spin on the belt.