Sure, it's not as sexy a bullet-point as "new design" or "lower price", but the fact the PS3 Slim was reported as running on 34% less power than the previous model was still appreciated. Thing is, that figure is wrong.
Crave decided not to take Sony's press releases at their word, and instead plugged a Slim into machines to test its actual power output. And their findings are a little surprising!
The Slim uses a lot less power than Sony have given it credit for. In standby mode, it's around 70% more efficient, while playing games and Blu-Rays its just over 50% more efficient.
That's not to say its an efficient machine per se (it still uses 4x as much juice playing a Blu-Ray as a standalone Blu-Ray player), but hey, in relative terms, the Slim is now a lot more efficient than it's fatter, older, more wasteful brother.