Economaniac -
Intel has been getting base and peak scores which are essentially identical, which has always suggested to me that they simply added optimizations within the commercial compiler that detected the test programs and implemented the peak tuning.
I'm not willing to leap to outrageous assumptions with no data whatsoever to back me up.
It is mostly a matter of bragging rights with limited value in evaluating real world performance, which can be directly measured on the actual applications.
The significance is that AMD used SPEC scores (and base at that) to tout Hammer's performance many months ago. I'm pointing out that AMD failed to deliver on their promise, even by their own measure.