Editing Geode (processor) (section)

{{Short description|Series of x86-compatible processor}}
{{other uses|Geode (disambiguation)}}
{{Infobox CPU
| name                      = NSC Geode
| image                     = Geode GXLV233.jpg
| image_size                = 
| caption                   = NSC Geode GXLV 233 MHz
| produced-start            = 1999
| produced-end              = 
| slowest                   = 180
| fastest                   = 400
| slow-unit                 = MHz
| fast-unit                 = MHz
| fsb-slowest               = 30
| fsb-fastest               = 33
| fsb-slow-unit             = MHz
| fsb-fast-unit             = MHz
| size-from                 = 0.15 μm
| size-to                   = 0.35 μm
| soldby                    =
| designfirm                =
| manuf1                    = [[National Semiconductor]]
| core1                     = 
| sock1                     =[[Socket A]] 
| pack1                     = BGA
| brand1                    =
| microarch                 = 5x86
| arch                      = [[IA-32]]
| extensions                = [[MMX (instruction set)|MMX]], [[3DNow!]] (GX2)
| cpuid                     = 540h
| code                      =
| numcores                  = 1
| l1cache                   = 16 KiB unified (GXm/GXLV/GX1), 16 KiB instruction + 16 KiB data (GX2)
| predecessor               = Cyrix [[MediaGX]]
|sock2=BGA 481|sock3=BGA 396}}

'''Geode''' is a series of [[x86]]-compatible [[system-on-a-chip]] (SoC) [[microprocessor]]s and I/O companions produced by [[AMD]] that was targeted at the [[Embedded system|embedded computing]] market.

The series was originally launched by [[National Semiconductor]] as the '''Geode''' family in 1999. The original Geode processor core itself is derived from the [[Cyrix]] [[MediaGX]] platform, which was acquired in National's merger with Cyrix in 1997. AMD bought the Geode business from National in August 2003 to augment its existing line of embedded x86 processor products. Before acquiring Geode, AMD marketed the [[AMD Élan]], a family of 32-Bit embedded SoCs based on their own [[Am386]], [[Am486]] and [[Am586]] microprocessors. All of these products have been backed with a long-term supply guarantee to meet the needs of embedded processors. However, after acquiring Geode, the product was suddenly discontinued.<ref>{{cite web |url=https://www.heise.de/blog/Prozessorgefluester-288974.html |last1=Stiller |first1=Andreas |publisher=[[Heise (company)|Heise online]] |title=Prozessorgeflüster |date=25 August 2003 |language=de}}</ref><ref>{{cite web |url=https://ascii.jp/elem/000/000/648/648702/ |author=文● 大原雄介 |title=CPU黒歴史 組み込みへの無理解に翻弄されたElan＆Geode |publisher=ascii.jp |date=2011-11-14 |access-date=2022-11-15 |language=ja}}</ref>

AMD expanded the Geode series to two classes of processor: the MediaGX-derived Geode GX and LX, and the modern [[Athlon]]-derived Geode NX.

Geode processors are optimized for low power consumption and low cost while still remaining compatible with software written for the x86 platform. The MediaGX-derived processors lack modern features such as [[Streaming SIMD Extensions|SSE]] and a large on-die [[L1 cache]] but these are offered on the more recent Athlon-derived Geode NX. Geode processors tightly integrate some of the functions normally provided by a separate [[chipset]], such as the [[Northbridge (computing)|northbridge]]. Whilst the processor family is best suited for [[thin client]], [[set top box]] and [[Embedded system|embedded computing]] applications, it can be found in unusual applications such as the [[Nao (robot)|Nao robot]] and the [[Win Enterprises (WinPro IP-PBX)|Win Enterprise IP-PBX]].

The [[One Laptop per Child]] project used the GX series Geode processor in [[OLPC XO-1]] prototypes, but moved to the Geode LX for production.<ref>"[http://wiki.laptop.org/images/7/71/CL1A_Hdwe_Design_Spec.pdf CL1 Hardware Design Specification] {{Webarchive|url=https://web.archive.org/web/20140327210533/http://wiki.laptop.org/images/7/71/CL1A_Hdwe_Design_Spec.pdf |date=2014-03-27 }}". One Laptop per Child. 2008-09-28. Retrieved 2013-07-24.</ref> The [[Linutop]] (rebranded Artec [[ThinCan]] DBE61C or rebranded FIC ION603A) is also based on the Geode LX. [[3Com Audrey]] was powered by a 200&nbsp;MHz Geode GX1.

The SCxxxx range of Geode devices are a single-chip version, comparable to the [[Silicon Integrated Systems|SiS]] 552, [[VIA CoreFusion]] or Intel's [[Tolapai]], which integrate the CPU, memory controller, graphics and I/O devices into one package. Single processor boards based on these processors are manufactured by [[ThinCan|Artec Group]], [[PC Engines]] ([[Wireless Router Application Platform|WRAP]]), [[Soekris]], and [[Win Enterprises]].

AMD discontinued all Geode processors in 2019.<ref>{{Cite web|url=https://www.avalue-tech.com/eol_document.aspx?gid=95|title=Update of Products Adopted AMD Geode LX800 Platform - Avalue|website=www.avalue-tech.com|language=en|access-date=2020-01-20}}</ref>