The battle between Intel and AMD is very long, and although many people think it started with AMD's Thunderbird processors, it started earlier, in fact, many years earlier.
However, since AMD's Athlon processors have been released (the Thunderbird is only one of the series), it seems that the struggle has heated up and since then, the two companies have been in constant competition.
In recent months, with the release of the Northwood processors running on 533MHZ's bass and the new Thoroughbred processors, the fight has become so close that many have trouble tracking and many others are very confused when it comes to the power situation in the processor market.
For anyone who does not quite understand what's going on, the Amd World website today published a fairly lengthy review of the history of the struggle between the two giant processors. Among other things, the review addresses the history of the conflict, the technologies of current generation processors and the future plans of the two companies.