Is the Wii less powerful than the original Xbox?

Microsoft's president of Entertainment and Devices division Robbie Bach made some interesting comments recently, claiming that the Wii "[doesn't] have the graphics horsepower that even Xbox 1 had." In order to determine if Bach's statement is true or false, Newsweek's N'Gai Croal decided to get to the bottom of the issue by speaking with two anonymous tech experts at large third party developers. What did they have to say?

Well, apparently the Wii isn't as powerful as we think and the nickname of "GameCube 1.5" isn't all that far off. Interestingly enough, however, is one reply regarding the Wii's GPU, as the source stated "the Wii's GPU is not as fast or feature rich as the Xbox 360 or PS3, but that doesn't mean you can't get very close results." Hmm, we like the sound of that.

Any tech buffs want to toss in their 2 cents?

[Via Joystiq]