Note, when I say "blew Intel out of the water", I'm talking only about AMD64 K8.

As I understand it, this was true for "Big Iron" AMD64 sales, for one thing, AMD had a whole year's head start where they were the only ones selling it, and then Intel played catch up for a long time. For multi-chip machines, not until Intel had their own version of the Hypertransport + local memory controller architecture.

I believe what you're talking about only happened in consumer grade chips, although I know HP for instance found a way to sell AMD based consumer systems, my parents bought one in 2004-5.