I thought Gavin did an excellent job explaining the difference between code
names and commercial names.  The name "PENTIUM" was made up and is the
commercial name for a series of processors, just as XEON is a made-up
commercial name as are CELERON, ITANIUM and AGILENT and so on.

I have assembled the following list of commercial names with their
associated codenames.  As you can see, some commercial names have multiple
codenames and Intel really got a lot of mileage out of the name Pentium.
 The original codenames were very simple, they got onto the PNW river theme
with the Tillamook, the Pentium with MMX built on a .25 micron size.  It
was destined for notebooks as a low power equivalent to a corresponding
desktop CPU.  My Compaq Armada 7750 (circa 1997) has one.

Pentium (.80 micron fabrication 60/66MHz) codename P5
Pentium with .50 micro or smaller codename P54
Pentium w/ MMX codename P55
Pentium w/MMX .25 micron for notebooks codename Tillamook
Pentium II codename Klamath
Pentium III Original codename Katmai
Pentium III  0.18 Micron with 256KB of on-die L2 cache codename Coppermine
Pentium III socket 370 (current) codename Tualatin
Pentium IV codename Timna (never made it out)
Pentium IV codename Willamette
Pentium IV multiprocessor codename Foster

Pentium Pro codename P6
Pentium II Xeon codename Deschutes
Pentium III Xeon codename Tanner
Pentium III Xeon .18 Micron codename Cascades

Celeron Original (no L2 cache) codename Covington.
Celeron A (with 128KB of L2 cache) codename Mendocino
Celeron (with 256KB of L2 cache) codename Dixon

Itanium codename Merced
Itanium II codename McKinley

Intel chipsets also have their codenames, but we won't get into that now.
 BTW, AMD also has codenames for their processors.

Kind regards,

Denys. . .

Denys Beauchemin
HICOMP
(800) 323-8863  (281) 288-7438         Fax: (281) 355-6879
denys at hicomp.com                             www.hicomp.com


-----Original Message-----
From:   Sohrt, Jeff [SMTP:[log in to unmask]]
Sent:   Wednesday, April 18, 2001 3:06 PM
To:     [log in to unmask]
Subject:        OT: more on Itanium

Don't forget the Pentium III and IV rivers located somewheres....

And yes, I too would never nitpick something, though I'm thankful to learn
of the Merced River.  This list just never ceases to amaze me in its
thorough knowledge (and quick access to google).

jds

Denys writes:
> My main point was that Merced was not taken from the name
> Mercedes with
> some letters chopped off, it was part of a series of names of
> rivers.  All
> going to the Pacific.  :)   You have to love the nitpicking
> on this list,
> not that I ever engage in any of that.  :)  No sir, not me.
>

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