15 Facts About Itanium


Itanium is a discontinued family of 64-bit Intel microprocessors that implement the Intel Itanium architecture (formerly called IA-64).

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The Itanium architecture originated at Hewlett-Packard, and was later jointly developed by HP and Intel.

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In 2019, Intel announced that new orders for Itanium would be accepted until January 30, 2020, and shipments would cease by July 29, 2021.

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Itanium would adopt a more flexible form of explicit parallelism than i860 had.

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Itanium competed at the low-end with servers based on x86 processors, and at the high-end with IBM POWER and Sun Microsystems SPARC processors.

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Only a few thousand systems using the original Merced Itanium processor were sold, due to relatively poor performance, high cost and limited software availability.

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In early 2003, due to the success of IBM's dual-core POWER4, Intel announced that the first 90 nm Itanium processor, codenamed Montecito, will be delayed to 2005 so as to change it into a dual-core, thus merging it with the Chivano project.

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Intel discussed a "middle-of-the-decade Itanium" to succeed Montecito, achieving ten times the performance of Madison.

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In 2004 Intel revealed plans for its next Itanium chipset, codenamed Bayshore, to support PCI-e and DDR2 memory, but canceled it the same year.

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HP's first high-end Itanium chipset was sx1000, launched in mid-2003 with the Integrity Superdome flagship server.

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Sales of Itanium-based NonStop hardware ended in 2020, with support ending in 2025.

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Itanium was aimed at the enterprise server and high-performance computing markets.

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An Itanium-based computer first appeared on the list of the TOP500 supercomputers in November 2001.

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When first released in 2001, Itanium's performance was disappointing compared to better-established RISC and CISC processors.

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Former Intel official reported that the Itanium business had become profitable for Intel in late 2009.

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