I don't know much about this stuff but does the 87% efficiency mean it has to always be drawing that percentage of the power supply's total wattage or it has to be capable of doing so. i.e. does that mean it is always using 63 watts or can it be less.
Also in your breakdown towards the end where you are trying to calculate the GPU power draw, you didn't factor in the EDRAM. Now again I know nothing about this stuff but having seen the die shots of the GPU i would have thought that a big hunk of silicon like that would have to be responsible for a decent amount of that 'missing' wattage. (as a side question, could the possibility that early games were not using all CPU cores or the EDRAM help to account for the initial lower measurements of power draw?)
Nonetheless, this is still interesting since most arguments revolving around analysis of the WiiU's GPU and likely power seem to inevitably fall back on, "but it only uses 33 watts, there's only so much you can do with 33 watts".
Someone, please educate me.
