http://www.techspot.com/article/599-amd-rise-and-fall/
IMHO a *maybe* interesting read, many may want to skip to the 3rd & final page which talks about AMD/ATI's future -- if you don't really follow that stuff [I don't] it provides some quick insight.
OTOH it doesn't talk about AMD's Phenom, Phenom II, & FX CPUs failing to match Intel's in more than 1 or 2 categories. That's fine if you charge a lot less than Intel, which AMD generally has been forced to do, but that doesn't help generate profits, and Intel can afford to drive down prices - AMD can't.