Power consumption of Arduino Due versus Atmega2560

I just learnt that 8-bit Atmega2560 is more expensive than 32-bit Arduino Due. Does anyone know how much more power consumption Arduino Due consumes compared to Atmega2560. If the difference is not too great, then it is a no-brainer to use Due and Atmega2560 is dead.

The way I read the datasheet (they don't make it easy!), the 2560 chip consumes about 20mA when active at 16MHz, while the SAM3X consumes about 75mA when active at 84MHz.