I don't believe we should look at desktop parts where power and cooling are both abundant ...
One thing I still don't get:
Why is there a perception that consoles cannot take on the same form factor that existing set-top boxes (cable/satelite tv) use today?
People are perfectly happy with a standard 17" wide dvr sitting under their tv. With consoles taking on much of the entertainment responsibility that these boxes are commonly associated with, I see no reason that they could not also adopt their form factor.
1) 17" form factor is already accepted for cable/ sat tv dvrs
2) 17" form factor is already accepted for other entertainment devices such as dvd players, bluray players, av receivers, tivo, dvd/cd changers, etc.
3) 17" form factor would allow stacking of components ( a plus for ht enthusiasts) and not look out of place
4) 17" form factor would allow for more cost effective cooling solutions
5) 17" form factor would allow for beefier hardware (a big plus for gaining competitive edge on wii U)
Bottom line, I think the gaming industry (and consumer) has grown up enough to not be concerned with having the "smallest box on the shelf". These are entertainment devices which are finding their way into livingrooms, instead of relegated to a gameroom/bedroom.
Remember, the demographic shift of consumers that grew up with NES are now having kids of their own. This is no longer an industry of pg13.
Look at the best sellers:
Gears
COD
etc
These aren't kids games.
It's about time the form-factor reflected that.
In the process, we rid ourselves of such trivial thoughts as "will those specs fit in a console tdp".