They're not as fast though. And unless you really care about size, a 65 watts doesn't matter. I've got a dead silent system with an 85W gpu and a geforce 9800 gxt+. (one fan in it, but it's a low voltage Noctua that can't be heard even with my ear right against it. psu is fanless)

I appreciate your sentiment for colder hardware. I do hope it's going to get there some day, but not at the cost of speed. I think we've reached a situation where it's becoming more and more practical to have silent PCs.