Well, AMD worded their 40% statement very carefully, at the time they made their claim, the mean 40% faster using SPEC2006FP_rates. They did not clarify if they meant clock for clock and such... they also stated in a wide range of applications, and the SPEC2006FP bench has 17 different code bases in it's suite, so one could argue that is a wide range.
Where they missed was their clock speed estimate, 2.0 GHz launch speed is significantly slower than what they planned and they had to revise their expectation downward as a result, recall Hector Ruiz downplaying the product.
Jack
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