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[[file:Intel Xeon 2020 logo.svg|]]
Logo since 2020
Produced June 1998
Marketed by Intel
Designed by Intel
Common manufacturer(s)
  • Intel
Max. CPU clock rate 0.4 GHz to 4.80 GHz
FSB speeds 0.1 GHz to 8.0 GT/s
Instruction set IA-32, x86-64
  • P6
  • NetBurst
  • Core
  • Nehalem
  • Westmere
  • Sandy Bridge
  • Ivy Bridge
  • Haswell
  • Broadwell
  • Skylake
  • Sunny Cove
  • Cypress Cove
  • Golden Cove
Cores Up to 56
Predecessor Pentium Pro
  • LGA 4189
  • LGA 3647
  • LGA 2066
  • LGA 1200
  • LGA 1151v2
  • LGA 1151
  • LGA 2011-3
  • LGA 1150
  • LGA 2011

Xeon is a brand of x86 microprocessors designed and manufactured by Intel Corporation. In 1988 Intel released the first microprocessor using the name Xeon.

Xeon processors have always had popularity among some desktop users (video editors and other power users), mainly due to higher core count potential, and higher performance to price ratio vs. the Core i7 in terms of total computing power of all cores.

Pentium II Xeon 450 512
450 MHz Pentium II Xeon with 512 kB L2 cache: The cartridge cover has been removed.

The first Xeon-branded processor was the Pentium II Xeon (code-named "Drake"). It was released in 1998, replacing the Pentium Pro in Intel's server lineup.

Intel Pentium III Xeon 550 MHz Slot 2 geoeffnet
Back of a Pentium III Xeon with its cover set aside; there is a heatsink on the front side (underneath) of the circuit board
Intel pentium iii xeon 800 sl4h8 observe
Front of a Pentium III Xeon circuit board without its heatsink
Intel@180nm@P6@Cascades@Pentium III Xeon@SL4XW DSCx1 polysilicon microscope stitched@5x (24203772488)
Die shot of a Cascades Pentium III Xeon

In 1999, the Pentium II Xeon was replaced by the Pentium III Xeon. In mid-2001, the Xeon brand was introduced ("Pentium" was dropped from the name). 64-bit Xeon MPs were introduced in April 2005. The first dual-core CPU branded Xeon, codenamed Paxville DP, product code 80551, was released by Intel on October 10, 2005. Intel released relabeled versions of its quad-core (2×2) Core 2 Quad processor as the Xeon 3200-series (product code 80562) on January 7, 2007.

As of 2021, the Xeon series of processors are used in cloud computing and enterprise grade servers.


By 2013 Xeon processors were ubiquitous in supercomputers—more than 80% of the TOP500 machines in 2013 used them. For the fastest machines, much of the performance comes from compute accelerators; Intel's entry into that market was the Xeon Phi, the first machines using it appeared in June 2012 and by June 2013 it was used in the fastest computer in the world.Xeon processor-based systems are among the top 20 fastest systems by memory bandwidth as measured by the STREAM benchmark.

Images for kids

See also

Kids robot.svg In Spanish: Intel Xeon para niños

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