Bravo Reference: Intel Processor Families

by  Sam C. Chan


First Published: May 5, 2004
Last Updated: February 1, 2011

This is a concise yet comprehensive chart of all Intel processors used in the IBM-PC systems. It serves as an introduction to how processor categorization works, and illustrates the relationship among: product design, marketing name (series), and technology class (as reflected in codename).

  • There are currently 5 families: Core, Pentium, Celeron, Xeon, Itanium. Celeron and Xeon are edition designators, used across all generations of technologies.
  • After 80486, Intel decided to market processors under consumer-oriented names.
  • According to the Pentium I, II, III scheme, we'd be at Pentium XXXX (40) by now.
  • Each product code represents a new feature/function/performance design & architecture.
  • Each codename x represent a new technological architecture. The chips are known as x-class.
  • Each marketing name represents a "product line" in a branding sense, which could include arbitrary number of classes and/or generations of actual products, in a technical sense.
  • Starting at Pentium 4 Xeon, it became simply Xeon.
  • The Celeron moniker was used across lines. It could be an edition of Pentium II/III/4.
  • In 2002, Intel started using the Processor Number nomenclature to identify chips.   e.g.: Celeron D 336 represents Celeron Prescott class w/ 90nm technology, 256K L2 cache, 2.8GHz clock, 533MHz FSB, Intel-64 standard and NX support.
  • Mobile versions often represent completely different architecture, and even instruction sets.
  • The Pentium 4 Era has ended. That product line has been succeeded first by the Core line, and recently, the Core 2 line. Celeron edition of Pentium 4 generation continues on, only in Prescott class. Currently, there is no Celeron edition of Core 2.
  • Major attributes of a processor include: clock speed, cache design, levels & size, front-side-bus speed, memory type support, pipeline stages/depth, multi-core (fully independent), multi-thread (partial multi-core w/ shared portion), packaging & socket, fabrication technology generation (expressed in engineering terms: lambda = x nanometer), operating voltage, power consumption (wattage), 64-bit instructions set, hardware malware protection (NX/DEP) and virtualization hypervisor support.
  • with the Core i series, turbo mode (self governed on-demand, parameter based momentary over-clocking and throttling) is added as a primary performance boost.
Product Code Marketing Name Codename
8086 8086, 8088 (8-bit bus version)  
80286 80286 + 80287 (math co-processor)  
80386 80386DX, 80386SX (16-bit bus version)  
80486 80486DX, 80486SX + 80487SX (math)  
80500 Pentium P5 (A-step)
80501 Pentium P5
80502 Pentium P54C, P54CS
80503 Pentium MMX P55C, Tillamook
80521 Pentium Pro P6
80522 Pentium II Klamath
80523 Pentium II, Celeron, Pentium II Xeon Deschutes, Covington, Drake
80524 Pentium II, Celeron Dixon, Mendocino
80525 Pentium III, Pentium III Xeon Katmai, Tanner
80526 Pentium III, Celeron, Pentium III Xeon Coppermine, Cascades
80528 Pentium 4, Xeon Willamette (Socket 423), Foster
80530 Pentium III, Celeron Tualatin
80531 Pentium 4, Celeron Willamette (Socket 478)
80532 Pentium 4, Celeron, Xeon Northwood, Prestonia, Gallatin
80535 Pentium M, Celeron M Banias
80536 Pentium M, Celeron M Dothan
80537 Core 2 Duo T-series Merom
80538 Core Solo, Celeron M 4xx Yonah
80539 Core Duo Yonah
80541 Itanium Merced
80546 Pentium 4, Celeron D, Xeon Prescott (Socket 478), Nocona, Irwindale, Cranford, Potomac
80547 Pentium 4, Celeron D Prescott (LGA775)
80550 Dual-Core Xeon 71xx Tulsa
80551 Pentium D, Pentium EE, Dual-Core Xeon Smithfield, Paxville DP
80552 Pentium 4, Celeron D Cedar Mill
80553 Pentium D, Pentium EE Presler
80555 Dual-Core Xeon 50xx Dempsey
80556 Dual-Core Xeon 51xx Woodcrest
80557 Core 2 Duo E-series, Dual-Core Xeon 30xx Conroe
80560 Dual-Core Xeon 70xx Paxville MP
80562 Core 2 Quad, Core 2 Extreme QX-series, Quad-Core Xeon 32xx Kentsfield
80563 Quad-Core Xeon 53xx Clovertown
80569 Core 2 Quad Q9xxx Yorkfield
80570 Core 2 Duo E8xxx, Xeon 31xx Wolfdale
80580 Core 2 Quad Q8xxx, Q9xxx Yorksield-6M
80581 Core 2 Quad Q9xxx Penryn-QC
80601 Core i7, Xeon 35xx Bloomfield
80605 Core i5-7xx, Core i7-8xx, Xeon 34xx Lynnfield
80607 Core i7-7xx QM, Core i7-8xx QM, Core i7-9xx XM Clarksfield
80613 Core i7-9xxX, Xeon 36xx Gulftown
80616 Pentium G6xxx, Core i3-5xx, Core i5-6xx Clarkdale
80617 Core i5-5xx, Core i7-6xxM/UM/LM Arrandale
80627 Core i5/i7-2xxxM Sandy Bridge-HE-4, Sandy Bridge-H-2, Sandy Bridge-M-2
80632 Atom Tunnel Creek
80640 Atom Penwell
80641 Atom Cedar View

Bold type indicates one-time Bravo standards.
Yellow highlight indicates processors used by current Bravo Sonata and Encore systems.
Green hightlight indicates processors used in Bravo advanced and pilot projects.

No, it isn't officially EOL yet (but soon will be), but since July 2006, it no longer has a niche as it's being overlapped by high-end Celeron D in the value segment, and being replaced by Core 2 in the mainstream/performance segment.



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