Joe, that's a question I asked wbmw but I did not get a satisfactory answer. If the instruction set is called AMD64 how can Intel call it IA32-X or whatever? AMD called their SSE and SSE2 implementations what Intel called them. How can Intel emulate AMD64 but call it something else? Shouldn't AMD have some leverage here? I think Intel selling AMD64 compatible chips sounds a lot better then Intel selling IA32-X chips. How can AMD's legal let this happen?