As the parent poster said: > Alpha, UltraSPARC, MIPS and even Power had 64 bit long before the 2001 introduction of the Itanic. And even PA-RISC had 64 bits.

As the parent poster said: > Alpha, UltraSPARC, MIPS and even Power had 64 bit long before the 2001 introduction of the Itanic. And even PA-RISC had 64 bits. Itanium was just a processor trying to disrupt the RISC market.