According to Vigil Games.
In a recent interview with GameReactor, Darksiders devs, Vigil Games, said Wii U is 'on par with current generations'.
In a recent interview with GameReactor, Darksiders II game director Marvin Donald from Vigil Games said that they are getting about the same performance out of Wii U as from current consoles.
Apparently, some other devs are getting different results:
Could be the case that, Vigil got one of the first dev-kits, Nintendo has upgraded them and they haven't sent them a new one?
Darksiders II will be a launch title for the upcoming Wii U, which will be released around the end of the year.
NEWS SOURCE #1: http://www.shacknews.com/article/73026/darksiders-2-dev-wii-u-on-par-with-current-generations
NEWS SOURCE #2: http://www.gamereactor.se/nyheter/43021/GRTV:+Darksiders+II-intervju/
Our thanks to 'Gauss' for this news story!