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Intel Itanium logo.svg
General information
LaunchedJune 2001 (2001-06)
DiscontinuedJuly 2021 (2021-07)[1]
Common manufacturer(s)
Max. CPU clock rate733 MHz to 2.66 GHz
FSB speeds300 MHz to 6.4 GT/s
Architecture and classification
Instruction setItanium
Physical specifications
  • 1, 2, 4 or 8

Itanium (/ˈtniəm/ eye-TAY-nee-əm) is a discontinued family of 64-bit Intel microprocessors that implement the Intel Itanium architecture (formerly called IA-64). Launched in June 2001, Intel marketed the processors for enterprise servers and high-performance computing systems. The Itanium architecture originated at Hewlett-Packard (HP), and was later jointly developed by HP and Intel.

Itanium-based systems were produced by HP/Hewlett Packard Enterprise (HPE) (the HPE Integrity Servers line) and several other manufacturers. In 2008, Itanium was the fourth-most deployed microprocessor architecture for enterprise-class systems, behind x86-64, Power ISA, and SPARC.[2][needs update]

In February 2017, Intel released the final generation, Kittson, to test customers, and in May began shipping in volume.[3][4] It was used exclusively in mission-critical servers from Hewlett Packard Enterprise.

In 2019, Intel announced that Itanium CPU family production would terminate on January 30, 2020, and shipments would cease as of July 29, 2021.[1] This took place on schedule.[5]

  1. ^ a b "Select Intel Itanium Processors and Intel Scalable Memory Buffer, PCN 116733-00, Product Discontinuance, End of Life" (PDF). Intel. January 30, 2019. Archived (PDF) from the original on May 22, 2020. Retrieved May 20, 2020.
  2. ^ Morgan, Timothy (May 27, 2008). "The Server Biz Enjoys the X64 Upgrade Cycle in Q1". IT Jungle. Archived from the original on March 3, 2016. Retrieved October 29, 2008.
  3. ^ Davis, Lisa M. (May 11, 2017). "The Evolution of Mission Critical Computing". Intel. Archived from the original on September 8, 2018. Retrieved May 11, 2017. ...the 9700 series will be the last Intel Itanium processor.
  4. ^ Shah, Agam (May 11, 2017). "Intel's Itanium, once destined to replace x86 processors in PCs, hits end of line". PC World. Archived from the original on March 15, 2019. Retrieved May 20, 2020.
  5. ^ "The Register just found 300-odd Itanium CPUs on eBay". July 30, 2021. Archived from the original on September 12, 2021. Retrieved September 12, 2021.

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