Its disingenuous & condescending to throw away AMD's accomplishments by the wayside just because they acquired some other firms & aren't a monolith like Intel in the semiconductor market !
Oh, a lot of other companies push/pushed innovation. I could say some of them, some monoliths like Intel, others far smaller. Let's pick a list IBM, Nvidia, Qualcomm, Transmeta, DEC, PA Semi, Seamicro, Calxeda.
See? It's not a matter of size. Every one of those companies picked a concept and transformed in a product by their own means. They did not have to acquire the company A or B to develop something.
But then I ask you, what did AMD develop, from concept to product, in house?