Re: The only unknown is how good the AMD64 implementation is compared to the original because Prescott's was up and down in performance in that respect.
I don't know why this gets sensationalized so much. Performance tests indicate that Intel's 64-bit implementation is better than AMD's in some respects and worse in others. This should come as absolutely no surprise, since Intel's is based on their own micro-architecture, just tuned so that the op-codes are compatible with AMD's.
Merom's will be yet another micro-architecture, and the 14-stage pipeline will ensure very little reuse from Pentium 4. I would therefore expect Intel to have started from a clean slate and optimized the pipeline for high performance. It should be equal or better than the current implementation, most likely better.
Re: AMD told Anand there will be no new cpu architecture in 2006 so 65nm K8s look like the immediate opposition.
If they can get to 65nm. There has been nary a whisper about AMD's 65nm process since they showed a picture of an SRAM wafer at their last analyst's meeting. The rule of thumb is at least a year after tapeout. Has any 65nm AMD processor even taped out??
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