As much as I can see a point of taking the burden off having to overclock, at 220W you're going to need bloody good power delivery as well as cooling. Add to that the fact that a 20% IPC boost over the 8350 isn't anywhere near good enough in single threaded applications and it has all the hallmarks of an act of desperation. The only saving grace is multithreaded grunt, meaning the CPU can return to idle quicker, but that doesn't necessarily mean it's using less power than the 8350.
Hell, Steamroller will probably be nearly that much faster at single threading than the 8350 anyway, AND its CMT implementation has been fixed so it'd outperform even the 9000 at stock for half the power. Just get Steamroller out now and stop faffing about with Extreme Editions, AMD.