A source close to Intel claims the company will ship two new 'Madison' Itanium 2 processors on Monday. The processors will run at 1.66GHz with memory cache sizes of 6MB and 9MB.
Current chips have a 400MHz FSB but these two new chips are expected to have a 667MHz FSB.
Mainframe computer makers such as Hitachi, Fujitsu and Silicon Graphics are expected to launch new mainframes based on these two Itaniums. More info at CNET