(redirected from Ia64)
Also found in: Acronyms.


A CPU family from Intel designed to supersede Intel's x86-based servers. Although an advanced hardware architecture, and even with HP as its major supporter, Itanium gained only a fraction of the server market dominated by the x86 line. In addition, the compilers necessary to take full advantage of Itanium's elaborate architecture were never fully developed. By the time Itanium gained ground in the early 2000s, there were too many x86 servers running worldwide, and x86 performance was improving.

HP-UX (HP's Unix) and several other Unix versions run on Itanium; however, in the 2010 time frame, the Itanium versions of Windows Server, Red Hat Linux and Ubuntu Linux were given end of life.

x86 Kept Advancing
After 64-bit Itanium chips were introduced in 2001, Intel upgraded its x86 CPUs to 64 bits, and over the years added advanced security and fault detection features into high-end x86 Xeon chips. See Intel 64 and Xeon.

Native, x86 and HP PA-RISC Apps
Itaniums run native applications and emulate x86 and HP PA-RISC apps. x86 programs are executed in hardware or in software (see IA-32 Execution Layer). HP PA-RISC apps are translated in software (see Aries). For more on the Itanium architecture, see IA-64.

 Model           Process  Max.  Year   Tech.  Clock  Max.Code Name  Intro  (nm)   Speed  CoresItanium
 Merced     2001   180  800 MHz   1

 Itanium 2
 McKinley   2002   180  1.0 GHz   1
 Madison    2003   130  1.6 GHz   1
 Deerfield  2003   130  1.0 GHz   1
 Hondo      2004   130  1.1 GHz   1
 Fanwood    2004   130  1.6 GHz   1
 Madison    2004   130  1.7 GHz   1

 Montecito  2006    90  1.6 GHz   2
 Montvale   2007    90  1.7 GHz   2

 Itanium 9300
 Tukwila    2010    65  1.7 GHz   4

 Itanium 9500
 Poulson    2013    32  2.5 GHz   8
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
"Enterprise applications currently deployed on UNIX almost all rely on Motif and this port will greatly accelerate the adoption of Linux on IA64 processor systems," said Jerry Greenberg, Senior Vice President of Marketing for Turbolinux.
It contains the same features as Mandrake Linux 8.1 but is optimised for the IA64 architecture.
"All those versions of Unix tailored to RISC are now looking to port their Unix onto IA64."
TELECOMWORLDWIRE-7 December 2001-Mandrake Linux 8.1 for IA64 now shipping (C)1994-2001 M2 COMMUNICATIONS LTD
The company says it will be optimizing its software for Intel's upcoming IA64 product family, beginning with the Itanium processor.
In addition Informix is to make IDS available on the Linux IA64 platform to serve customers who have chosen the Linux operating system.
Yet both Sun and IBM remain committed to proprietary versions of Unix - namely Solaris, AIX and the forthcoming IA64. IBM views Linux as a "growth path" to AIX and IA64, a set of training wheels for Unix.
Intel plans to hold a detailed tutorial on the IA64 Architecture and compilers on the first day of the event, Sunday August 15th, in advance of its own Developers Forum in Palm Springs at the end of the month.
IDC has cut back its expectation for Intel's IA64 which will initially underperform RISC alternatives, and expects Microsoft NT/Windows 2000 to make slow progress in the midrange due to its novelty and question marks over its reliability.