2001
Intel launches Itanium, its first 64-bit processor architecture, with HP
Itanium introduced Intel's EPIC (Explicitly Parallel Instruction Computing) architecture, co-developed with Hewlett-Packard, aimed at high-end servers and workstations. Despite the ambitious redesign, it struggled against x86-64 alternatives and never displaced Intel's mainstream x86 line.
Source: Intel Newsroom archive
