# If Intel kept their 286, 386, 486, etc naming, what number would we have today?

**URL:** <https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230>\
**Category:** Factual Questions\
**Created:** [July 26, 2015, 1:52pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230 "2015-07-26T13:52:57Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![doubled](https://avatars.discourse-cdn.com/v4/letter/d/51bf81/32.png) [@doubled](https://boards.straightdope.com/u/doubled)\
**Post date:** [July 26, 2015, 1:52pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/1 "2015-07-26T13:52:57Z")

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Intel used to name each major processor release 286, the 386, the 486, etc. Then the next version was supposed to be called the 586, but their marketing department decided to rename it “pentium”, but to this day, if you pay attention when your computer starts up, you still see references to “X86” in the debugging output.

So how many major versions has Intel released since that 586/pentium? If they had kept the same naming convention, what number would we be on now? Like the 1286 or something?

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**Author:** ![John\_Mace](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/john_mace/32/185_2.png) [@John\_Mace](https://boards.straightdope.com/u/John_Mace)\
**Post date:** [July 26, 2015, 2:57pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/2 "2015-07-26T14:57:54Z")

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According to wikidpedia, it’s on it’s [10th iteration.](https://en.wikipedia.org/wiki/X86#Chronology)

I’m assuming that “other” is the 10th, although they only enumerate the 9th.

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**Author:** ![astro](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@astro](https://boards.straightdope.com/u/astro)\
**Post date:** [July 26, 2015, 3:01pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/3 "2015-07-26T15:01:03Z")

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> [@doubled](#):
>
> Intel used to name each major processor release 286, the 386, the 486, etc. Then the next version was supposed to be called the 586, but their marketing department decided to rename it “pentium”, but to this day, if you pay attention when your computer starts up, you still see references to “X86” in the debugging output.
> 
> So how many major versions has Intel released since that 586/pentium? If they had kept the same naming convention, what number would we be on now? Like the 1286 or something?

You have to choose what separates each generation and as the processors got more varied and complex that dividing line got more blurred. Here is the historical list of the microarchitectures.

> **[List of Intel CPU microarchitectures](https://en.wikipedia.org/wiki/List_of_Intel_CPU_microarchitectures)**
>
> The following is a partial list of Intel CPU microarchitectures. The list is incomplete, additional details can be found in Intel's tick–tock model, process–architecture–optimization model and Template:Intel processor roadmap.

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**Author:** ![coremelt](https://avatars.discourse-cdn.com/v4/letter/c/4491bb/32.png) [@coremelt](https://boards.straightdope.com/u/coremelt)\
**Post date:** [July 26, 2015, 3:07pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/4 "2015-07-26T15:07:19Z")

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Based on that wiki link and only counting the “tick” of Intel’s updates and not the “tock” process shrink, then that would mean the following:

Original “core” architecture is = 886  
Sandy Bridge = 986  
Haswell = 1086  
Sky Lake, due out later this year = 1186

(I am not counting Nehalem as a new generation)

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**Author:** ![TriPolar](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tripolar/32/3008_2.png) [@TriPolar](https://boards.straightdope.com/u/TriPolar)\
**Post date:** [July 26, 2015, 3:11pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/5 "2015-07-26T15:11:14Z")

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They didn’t start with -86. We’ve had the 4004, 8080, 8088 as well off the top of my head. I think we would have gone through -32 and -64 suffixes also, and then additional coding for multi-cores.

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**Author:** ![coremelt](https://avatars.discourse-cdn.com/v4/letter/c/4491bb/32.png) [@coremelt](https://boards.straightdope.com/u/coremelt)\
**Post date:** [July 26, 2015, 3:25pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/6 "2015-07-26T15:25:11Z")

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Yes but the poster asked specifically about starting at 286 and continuuing the count. The link that astro posted includes the major generation changes and includes the transition to 64 bit and multi cores. 2 x core and 4 x core versions of the same chipset are one generation.

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**Author:** ![Rysto](https://avatars.discourse-cdn.com/v4/letter/r/ecccb3/32.png) [@Rysto](https://boards.straightdope.com/u/Rysto)\
**Post date:** [July 26, 2015, 5:37pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/7 "2015-07-26T17:37:31Z")

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> [@coremelt](#):
>
> Based on that wiki link and only counting the “tick” of Intel’s updates and not the “tock” process shrink, then that would mean the following:
> 
> Original “core” architecture is = 886  
> Sandy Bridge = 986  
> Haswell = 1086  
> Sky Lake, due out later this year = 1186
> 
> (I am not counting Nehalem as a new generation)

Why doesn’t Nehalem count?

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**Author:** ![coremelt](https://avatars.discourse-cdn.com/v4/letter/c/4491bb/32.png) [@coremelt](https://boards.straightdope.com/u/coremelt)\
**Post date:** [July 26, 2015, 6:34pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/8 "2015-07-26T18:34:38Z")

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> [@Rysto](#):
>
> Why doesn’t Nehalem count?

It’s pretty arbitrary, Nehalem as far as I can tell was only a die shrink and minor changes from the original Core architecture, while the other generational changes are more clear. Anyway, Current Haswell processors are either 1086 or 1186 depending on how you count it.

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**Author:** ![urban1a](https://avatars.discourse-cdn.com/v4/letter/u/e47c2d/32.png) [@urban1a](https://boards.straightdope.com/u/urban1a)\
**Post date:** [July 27, 2015, 1:45am UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/9 "2015-07-27T01:45:47Z")

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> [@TriPolar](#):
>
> They didn’t start with -86. We’ve had the 4004, 8080, 8088 as well off the top of my head. I think we would have gone through -32 and -64 suffixes also, and then additional coding for multi-cores.

And [8086](https://www.google.com/search?q=8086&oq=8086&aqs=chrome..69i57j0l5.1584j0j7&sourceid=chrome&es_sm=122&ie=UTF-8) and [8087 - math coprocesser](https://en.wikipedia.org/wiki/Intel_8087).

Bob

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**Author:** ![dtilque](https://avatars.discourse-cdn.com/v4/letter/d/d6d6ee/32.png) [@dtilque](https://boards.straightdope.com/u/dtilque)\
**Post date:** [July 28, 2015, 5:57am UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/10 "2015-07-28T05:57:10Z")

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There was an 80186 as well, although I don’t think it got put into very many PCs. They pretty much all jumped from 8086’s to 80286’s.

Shouldn’t the number after 986 be the A86?

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**Author:** ![Morgenstern](https://avatars.discourse-cdn.com/v4/letter/m/f9ae1b/32.png) [@Morgenstern](https://boards.straightdope.com/u/Morgenstern)\
**Post date:** [July 28, 2015, 8:44pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/11 "2015-07-28T20:44:53Z")

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How many people remember that there was actually a 186. I had one in a Polo computer way baaaaaack then.

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**Author:** ![TonySinclair](https://avatars.discourse-cdn.com/v4/letter/t/49beb7/32.png) [@TonySinclair](https://boards.straightdope.com/u/TonySinclair)\
**Post date:** [July 29, 2015, 2:06am UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/12 "2015-07-29T02:06:23Z")

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> [@doubled](#):
>
> So how many major versions has Intel released since that 586/pentium? If they had kept the same naming convention, what number would we be on now? Like the 1286 or something?

Exactly like that, according to Wiki:

> [@](#):
>
> 3 Pentium-branded processor  
> 3.1 P5 microarchitecture based  
> 3.1.1 Pentium  
> 3.2 P6 microarchitecture based  
> 3.2.1 Pentium Pro  
> 3.2.2 Pentium II  
> 3.2.3 Pentium III  
> 3.3 Netburst microarchitecture based  
> 3.3.1 Pentium 4  
> 3.3.2 Pentium D  
> 3.4 Pentium M microarchitecture based  
> 3.4.1 Pentium M  
> 3.4.2 Pentium Dual-Core  
> 3.5 Core microarchitecture based  
> 3.5.1 Pentium Dual-Core  
> 3.5.2 Pentium (2009)  
> 3.6 Nehalem microarchitecture based  
> 3.7 Sandy Bridge microarchitecture based  
> 3.8 Ivy Bridge microarchitecture based

So by my count, if the P5 was 5th generation, Ivy Bridge is 12th.

Note that that’s just for Pentiums, and there have been many other forks along the way, so the family tree for all Intel processors looks like the European royal lines.

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**Author:** ![Melbourne](https://avatars.discourse-cdn.com/v4/letter/m/b5e925/32.png) [@Melbourne](https://boards.straightdope.com/u/Melbourne)\
**Post date:** [July 29, 2015, 3:31am UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/13 "2015-07-29T03:31:38Z")

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> [@John\_Mace](#):
>
> According to wikidpedia, it’s on it’s [10th iteration.](https://en.wikipedia.org/wiki/X86#Chronology)
> 
> I’m assuming that “other” is the 10th, although they only enumerate the 9th.

Any wikipedia article that puts the 8086 and the 80186 as the same “generation” is a wikipedia article you should treat with disdain.

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**Author:** ![Tim\_T-Bonham.net](https://avatars.discourse-cdn.com/v4/letter/t/46a35a/32.png) [@Tim\_T-Bonham.net](https://boards.straightdope.com/u/Tim_T-Bonham.net)\
**Post date:** [July 29, 2015, 11:10pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/14 "2015-07-29T23:10:19Z")

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Interesting side info: the reason Intel changed from 486 to Pentium is that the US Government ruled that numbers (like “486”) couldn’t be copyrighted. So they were unable to prevent other CPU maker from also calling their chips a 486 or 486-compatible. So Intel went to a made-up name like Pentium.

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**Author:** ![Saint\_Cad](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/saint_cad/32/18907_2.png) [@Saint\_Cad](https://boards.straightdope.com/u/Saint_Cad)\
**Post date:** [July 29, 2015, 11:28pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/15 "2015-07-29T23:28:18Z")

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I would go with  
64 bit Pentium 4 = 786  
Core = 886  
Sandy Bridge = 986  
Sky[del]net[/del]lake = A86

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**Author:** ![Derleth](https://avatars.discourse-cdn.com/v4/letter/d/b9e5f3/32.png) [@Derleth](https://boards.straightdope.com/u/Derleth)\
**Post date:** [July 29, 2015, 11:34pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/16 "2015-07-29T23:34:20Z")

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> [@t-bonham@scc.net](#):
>
> So Intel went to a made-up name like Pentium.

… and then kept the Pentium name because it had become a successful brand and, possibly, because the only reasonable “next steps” would be either Hexium or Sexium, neither of which would have been acceptable to marketing.

Probably mostly because the Pentium brand had become so successful.

So all of these “generations” are marketing first and foremost: There has never been a single line of development for x86 after the very early days (even the 80186 was off to one side, having been primarily used as an embedded processor) and, to programmers, it’s far more interesting to group chips by which features (ISA extensions, cache sizes, etc.) they have, regardless of the brand name stuck on them.

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**Author:** ![ssgenius](https://avatars.discourse-cdn.com/v4/letter/s/b5ac83/32.png) [@ssgenius](https://boards.straightdope.com/u/ssgenius)\
**Post date:** [July 29, 2015, 11:42pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/17 "2015-07-29T23:42:44Z")

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I like the term “sexium” but somehow that would not fly

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**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\
**Post date:** [July 30, 2015, 6:07pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/18 "2015-07-30T18:07:07Z")

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> [@Derleth](#):
>
> … So all of these “generations” are marketing first and foremost: There has never been a single line of development for x86 after the very early days (even the 80186 was off to one side, having been primarily used as an embedded processor) and, to programmers, it’s far more interesting to group chips by which features (ISA extensions, cache sizes, etc.) they have, regardless of the brand name stuck on them.

You forgot a key constituency: the people who design and build motherboards and complete systems.

I think the “generation” concept has at least some relevance to them.

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**Author:** ![Amateur\_Barbarian](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@Amateur\_Barbarian](https://boards.straightdope.com/u/Amateur_Barbarian)\
**Post date:** [July 30, 2015, 6:57pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/19 "2015-07-30T18:57:48Z")

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> [@TriPolar](#):
>
> They didn’t start with -86. We’ve had the 4004, 8080, 8088 as well off the top of my head.

The grandfather of pretty much all PC chips is the 16-bit 8086, a major evolution over the foundational 8-bit 8080. The 8088 was the 8086 repackaged with an 8-bit external data path, which let IBM build a slower, cheaper machine for the first PC.

Other than regarding the 8080 as the Neandertal of the Intel family, I think you can safely ignore the other lines and earlier generations for this discussion.

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**Author:** ![dtilque](https://avatars.discourse-cdn.com/v4/letter/d/d6d6ee/32.png) [@dtilque](https://boards.straightdope.com/u/dtilque)\
**Post date:** [July 30, 2015, 8:55pm UTC](https://boards.straightdope.com/t/if-intel-kept-their-286-386-486-etc-naming-what-number-would-we-have-today/726230/20 "2015-07-30T20:55:19Z")

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> [@t-bonham@scc.net](#):
>
> Interesting side info: the reason Intel changed from 486 to Pentium is that the US Government ruled that numbers (like “486”) couldn’t be copyrighted. So they were unable to prevent other CPU maker from also calling their chips a 486 or 486-compatible. So Intel went to a made-up name like Pentium.

You mean trademarked, not copyrighted, but otherwise that’s right.

> [@Amateur\_Barbarian](#):
>
> The grandfather of pretty much all PC chips is the 16-bit 8086, a major evolution over the foundational 8-bit 8080.

Deep inside every Intel microprocessor is an 8086 struggling to get out…

> [@](#):
>
> The 8088 was the 8086 repackaged with an 8-bit external data path, which let IBM build a slower, cheaper machine for the first PC.

There was also an 80188, 8-bit version of the 186. They dropped these 8-bit versions with the 286.

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