This ain't a 100% correct. Try using the starving profile, and play some high quality 800x480 video, the mediaplayer will crash, that's because the dsp will suck a very little amount of power which isn't sufficient for such tasks. I, personally use starving profile with a hard-sleep script as a QBW, for, e.g. long flights where I don't want to completely turn off my N900, neither use the CPU + DSP at full power.