Jesus Chirist. How many times does this need to be repeated. A 45W Quad Core is acceptable when you consider the Penryn's and 9400M were 35W and 12W respectively and they were both used in the 2009 MBP's. It's not about the CPU TDP, it's about the thermal design power of both the video AND the CPU. Last time I checked 45W < 47W.
oh. you got a point there...
*Edit*
Of course, the GPU and CPU have separate cooling units. They weren't freaking sitting next to each other. And now you're talking about 45W in one single chip.
Apple's laptop cooling is designed to handle a certain amount of TDP for the CPU and separate amount for the GPU.
Nevermind...