One thing planned between AMD and ATI is the incorporation of gpu support into the upcoming line of cpus. The idea for 2008 and beyond is to integrate microprocessors with graphics chips. It will like having a third or fifth core added to the newer line of cpus that come out. That's geared to meet the demands for graphics and multimedia.
You can easily point at all of the benchmarks you want until you realize the next line of cpus will make the C2Ds look like "code 2 dinosaurs" no matter who makes them. For 2007 AMD is focused more on the server line of quad core cpus coming out. That will pretty much surpass their Opteron line. So much for the Opteron 185 planned for a 2007 build.

Now we'll see how long it takes AMD to get out of it's hopefully temporary slump. But the bulb that burns the brightest usually burns out the quickest.