AnandTech gives us their thoughts on AMD's new Athlon 64 FX-57, which is reputed to be the fastest single-core processor. Here's a short snip:

AMD is increasing the speed of their highest performing CPU today. The Athlon FX-57 is a 200MHz bump from the current FX-55, brining the clock speed of the highest performing single core CPU on the market to 2.8GHz. This modest 7.7% increase is not the be all, end all of speed bumps, but AMD is still in a much better position than Intel for extracting performance by tacking on an extra 200MHz..



Link: AnandTech