Anonymous Coward writes: "When CPU manufacturers ran up against the power wall in their designs, they announced that "the Gigahertz race is over; future products will run at slower clock speeds and gain performance through the use of multiple cores and other techniques that won't improve single-threaded application performance." Well, it seems that the gigahertz race is back on — This CNET story talks about how AMD has boosted the speed of their new Opterons to 3GHz. Of course, it the new chips also consume better than 20% more power than their last batch. The real question is: "What happens when they approach 4GHz this time?""
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