Browse Definitions:


Xeon (pronounced ZEE-ahn ) is a 400 MHz Pentium microprocessor from Intel for use in "mid-range" enterprise servers and workstations. On a server motherboard from Intel, up to eight (and later even more) Xeon processors will be able to do multiprocessing sharing the same 100 Mhz bus. Xeon is replacing the Pentium Pro as Intel's main enterprise microchip. Xeon is designed for Internet and large transactional database servers as well as for engineering, graphics, and multimedia applications that require moving a lot of data around quickly. Xeon is the high end of the Pentium line ( Celeron is the low end).

Xeon is based on the Pentium microprocessor's P6 architecture. It's designed to work with a new and faster Peripheral Component Interconnect bus and Accelerated Graphics Port . Xeon features:

  • A faster L1 and L2 cache , either 512 Kbytes or 1 Mbyte, that runs at the same 400 Mhz clock speed of the processor.
  • A faster bus to carry data between the processor, RAM, and I/O devices. The 450NX PCIset is a chipset that works at a 100 Mhz clock speed and supports up to 8 GB of extended data output RAM memory.
  • A larger Accelerated Graphics Port ( AGP ) chip set called the 440GX AGPset that also runs at 100 Mhz. It supports 2 GB of 100 Mhz SDRAM .
  • An extended server memory architecture that provide for 36-bit addresses, allowing up to 64 GB of physical memory to be addressed.
  • Everything premounted in a motherboard package for faster manufacturing
Typically, a computer with a Xeon microprocessor would use a Windows NT , NetWare , or UNIX operating system. Xeon-based systems are expected to offer competition to Sun Microsystems, Silicon Graphics, and others in the workstation market, but its primary market is expected to be the mid-range server.
This was last updated in April 2005

Continue Reading About Xeon

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.


File Extensions and File Formats

Powered by:


  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces.

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

  • pure risk (absolute risk)

    Pure risk, also called absolute risk, is a category of threat that is beyond human control and has only one possible outcome if ...


  • federated identity management (FIM)

    Federated identity management (FIM) is an arrangement that can be made among multiple enterprises to let subscribers use the same...

  • cross-site scripting (XSS)

    Cross-site scripting (XSS) is a type of injection security attack in which an attacker injects data, such as a malicious script, ...

  • firewall

    In computing, a firewall is software or firmware that enforces a set of rules about what data packets will be allowed to enter or...



  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...


  • volume manager

    A volume manager is software within an operating system (OS) that controls capacity allocation for storage arrays.

  • external storage device

    An external storage device, also referred to as auxiliary storage and secondary storage, is a device that contains all the ...

  • NetApp SolidFire

    NetApp SolidFire is a business division of NetApp Inc. that specializes in all-flash storage systems.


  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.