An anonymous reader 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 — a CNET story talks about how AMD has boosted the speed of their new Opterons to 3GHz. Of course, the new chips also consume better than 20% more power than their last batch. 'The 2222 SE, for dual-processor systems, costs $873 in quantities of 1,000, according to the Web site, and the 8222 SE, for systems with four or eight processors costs $2,149 for quantities of 1,000. For comparison, the 2.8GHz 2220 SE and 8220 SE cost $698 and $1,514 in that quantity. AMD spokesman Phil Hughes confirmed that the company has begun shipping the new chips. The company will officially launch the products Monday, he said.'"