Very thorough review Wizz, thanks. Particularly like the performance per watt and per $ to put this into perspective for its class.
It would be GREAT if you could have a reference card that was the typical upgrade-from card, to get an idea how much better this card is over the card that people have in their system (that they want to upgrade). What type of card does a person have who would consider a 4670? Perhaps Intel Integrated, or a x800 system or 7800? A comparison against one full generation below, rather than just all products in current generation. I know its more work... but the reference comparison would be invaluable.
4670 looks like a perfect solution for a "silent" office PC, or HTPC, with 3D ability, but not needed state-of-art gaming performance.
Key question: will it drive a 2560x1600 TFT? Or 2x 1600x1200?