The chip, containing more than 1.7 billion transistors, is one of the most ambitious ever built, the report said.
A spokesperson for Intel could not immediately be reached.
Montecito, part of a development effort that originally included Hewlett-Packard Co., has an unusually large amount of built-in memory and will make Itanium more competitive with high-end chips from International Business Machines Corp. and Sun Microsystems Inc., the report said.
In October, Intel said it was delaying volume production of Montecito until the middle of 2006, citing quality issues. Initial plans for volume production had been slated to for the first quarter of 2006.