Itanium I & II

Technical Specification

Introduction date:


Data Bus:
Address Bus:
L1 Cache:
L2 Cache:
L3 Cache:

June 2001 (Itanium I)
July   2002 (Itanium II)

Itanium I : 667 - 800 MHz
Itanium II: 900 -1600 MHz

64 Bit  Processor
Itanium II: 221.000.000   0,18 micron
130 Watt !! at 1,3 Volt
64 Bit
64 Bit

16+16 KB
256 KB
1,5 MB - 9 MB

The Itanium was no longer superior to contemporaneous RISC and CISC processors. Itanium competed at the low-end (primarily 4-CPU and smaller systems) with servers based on x86 processors, and at the high end with IBM's POWER architecture and Sun Microsystems' SPARC architecture. Intel repositioned Itanium to focus on high-end business and HPC computing, attempting to duplicate x86's successful "horizontal"  market.  With economies of scale fueled by its enormous installed base, x86 was the preeminent "horizontal" architecture in enterprise computing. HP and Intel recognized that Itanium was not competitive and replaced it with Itanium 2 a year later, as they had planned. Only a few thousand of the original Itaniums were sold, due to limited availability caused by poor yields, relatively poor performance, and high cost.

Itanium I

Itanium I on the bottom and side view.
On this side view you can read the words
"Intel Confidential". This means that this Processor is a Engineering Sample.
80541KZ6672M   80541KZ6674M
Both Itanium here are Engineering Samples, and both with 667 MHz.
The left one with 2MB cache and the right
one with 4 MB.
Q012 ES   QS05 ES

Itanium II

  QUD07, Engineering Sample  

More Info about Intel Itanium

Intel Itanium architecture Intel Itanium II architecture