Even though the Graphics Core Next GPUs have been slightly underclocked to 825MHz, and even though they technically offer better performance per watt than a single-GPU configuration, their overall 375w power draw could still get you in trouble with your local power station.
Three high-performance MIPS computing cores--or brains--can be crammed into the same space within a phone or mobile device as a single Intel Atom mobile processor core without increasing the device's power draw.