AMD has refreshed its lineup of eight-core FX chips in what sounds like some straightforward overclocking of last year's products. The FX-9590 claims a clock speed of 5GHz in turbo mode, making it the "world's first commercially available 5GHz CPU processor," while the FX-9370 lags slightly behind at 4.7GHz, as compared to the 4.2GHz top speed of the current FX-8350. Both new CPUs are based on the familiar Piledriver core, which has a reputation for being relativel
