Editing Duron (section)

==Revisions==
The original Duron, using the "Spitfire" core, was manufactured in 2000 and 2001 at speeds ranging from 600 to 950&nbsp;MHz. It was based on the 180&nbsp;nm "[[Athlon#Athlon Thunderbird|Thunderbird]]" Athlon core.

The second-generation Duron, the "Morgan" core, was sold in speed grades between 900 and 1300&nbsp;MHz, and was based on the 180&nbsp;nm "[[Athlon#Palomino|Palomino]]" Athlon XP core. As a result, it featured a few important enhancements, namely full Intel SSE support, enlarged TLBs, hardware data prefetch, and an integrated thermal diode. Like the "Palomino" core, "Morgan" was also expected to reduce heat dissipation; however in "Morgan"'s case this did not happen due to its increased core voltage.

A third-generation Duron, the "Appaloosa" core, was announced in the 2001-2002 AMD Processor Roadmap,<ref>{{cite web
|url=http://www.amd.com/us-en/Corporate/VirtualPressRoom/0%2C%2C51_104_608%2C00.html
|archive-url=https://web.archive.org/web/20011018151805/http://www.amd.com/us-en/Corporate/VirtualPressRoom/0,,51_104_608,00.html
|title=2001-2002 AMD Processor Roadmap
|author=Advanced Micro Devices
|date=2000
|archive-date=Oct 18, 2001
}}</ref> to enter production in 2002; this was to be manufactured with AMD's upcoming [[130&nbsp;nm process|130 nm process]]. Despite rumors of early limited circulation however, "Appaloosa"-based Durons never reached the market, and by the end of 2001, "Appaloosa" had been removed from the roadmap.<ref>{{cite web
|url=http://www.amd.com/us-en/Corporate/VirtualPressRoom/0%2C%2C51_104_608%2C00.html
|archive-url=https://web.archive.org/web/20021011050816/http://www.amd.com/us-en/Corporate/VirtualPressRoom/0,,51_104_608,00.html
|title=2002-2003 AMD Processor Roadmap
|author=Advanced Micro Devices
|date=2001
|archive-date=Oct 11, 2002
}}</ref>

Instead of the canceled "Appaloosa" core, the Duron line eventually saw a final generation in 2003, in the form of the "Appalbred" core (later typically misspelled as "Applebred"), which was a 130&nbsp;nm [[Athlon#Thoroughbred|"Thoroughbred" Athlon XP]] with only 64&nbsp;KiB (¼) of L2 cache enabled. The name "Appalbred" was a [[portmanteau]] of "Appaloosa" and "Thoroughbred", much like the contemporary "Thorton" Athlon XP, a "Barton" with only 256&nbsp;KiB (½) of L2 cache enabled, was a portmanteau of "Thoroughbred" and "Barton". Neither "Appalbred" nor "Thorton" ever appeared on an official AMD processor roadmap.

In the years following its introduction and the withdrawal of the Duron line from the market, the spelling "Appalbred" gradually became replaced by the phonetically similar "Applebred", as "Appaloosa" and the etymology of "Appalbred" were mostly forgotten.