The Nintendo Wii U has been out for a few weeks now, and there have been some more interesting tests run on Nintendo's next-gen console. With no increase in actual processing power over the current-gen Xbox 360 and PlayStation 3, where can we see some improvements? Efficiency.
Performance per watt numbers show Nintendo have the lead, where the Wii U offers some of the same graphical capabilities and gameplay experiences that the current Xbox 360 and PS3 offer, but at much lower power consumption numbers.
The Wii U is slimmer than the just-released PlayStation "Super Slim" model, but offers the same performance (and sometimes better) in terms of resolution support, and lower power consumption numbers by a decent amount. During the FIFA 13 Demo, the Wii U only consumes 32w of power compared to the Xbox 360S and PS3 Super Slim with 76.5w and 70w, respectively.