Speed. It's of paramount importance in evaluating any computer system, and the engine that gives your PC its get up and go is its CPU. The folks at AMD wanted to show off just how awesome (and fast) their new Bulldozer-based FX chips can be, and set a Guiness World Record for the "Highest Frequency of a Computer Processor" while they were at it. To get the record, a team of "elite overclocking specialists" cranked up the juice on an 8-core desktop CPU until hitting a speed of 8.429GHz -- handily surpassing the previous mark of 8.308GHz. So, AMD's got the fastest silicon in the west and it's