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You probably know this by now, since it seems pretty much everyone has read our initial review of AMD's FX-8150 processors, but the "Bulldozer" architecture on which the FX chips are based is a "speed demon"—a CPU designed to run naturally at high clock frequencies. The concept is to do relatively less work per clock cycle and to enable higher speeds to make up the difference. You may also know that the FX-8150's performance hasn't entirely lived up to the "FX" product name—or to the expectations of many AMD fans. The reasons for that fact are many, but one of them seems to be fairly clear: Bulldozer-based chips probably haven't reached the clock speeds AMD's engineers originally intended.

We attempted to rectify that fact during our first round of FX CPU testing by cranking up the clock speeds , an effort made easier because all FX-series processors have unlocked multipliers. We were a bit frustrated ...

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