wbmw,
It depends on how you judge superiority.
When one is being bought, and the other is not.
AMD64/EM64T represents easier reuse of existing infrastructure, making it easier to ramp in volume
Well, duh.
On the other hand, this has nothing to do with the viability of the instruction set as a viable enterprise alternative for high end processing.
Starting from scratch, assuming that some 1/2 billion strong installed base of x86 processors does not exist, Itanium instruction set would have a better chance than in today's world.
IPF is a better fit for higher end tasks, where the cost of converting infrastructure is small compared to the TCO of the solution.
You are saying it as if adoption of Itanium does not involve conversion costs.
In these cases, the raw performance of IPF has an advantage.
I think it is yet to be realized beyond HPC niche.
Joe
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