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Latest revision Your text
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| developer 2      = Loongson
 
| developer 2      = Loongson
 
| manufacturer      = STMicroelectronics
 
| manufacturer      = STMicroelectronics
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| manufacturer 2    = SMICS
 
 
| type              = Microprocessors  
 
| type              = Microprocessors  
 
| first announced  = 2003
 
| first announced  = 2003
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| first launched    = October 17, 2003
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| first launched    = 2003
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| arch              = 64-bit MIPS processors
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| arch              = 64 low-power MIPS processors
 
| isa              = MIPS64
 
| isa              = MIPS64
 
| microarch        = GS464
 
| microarch        = GS464
 
| word              = 64 bit
 
| word              = 64 bit
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| proc              = 180 nm
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| proc              = 90 nm
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| proc 2            = 130 nm
 
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| proc 3            = 90 nm
 
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| proc 4            = 65 nm
 
 
| tech              = CMOS
 
| tech              = CMOS
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| clock min        = 250 MHz
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| clock min        =  
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| clock max        = 1,000 MHz
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| clock max        =  
 
| package          =  
 
| package          =  
 
| package 2        =  
 
| package 2        =  
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| succession      = Yes
 
| succession      = Yes
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| predecessor      = Godson 1
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| predecessor      =  
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| predecessor link = loongson/godson 1
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| predecessor link =  
 
| successor        = Godson 3
 
| successor        = Godson 3
 
| successor link  = loongson/godson 3
 
| successor link  = loongson/godson 3
 
}}
 
}}
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'''Godson 2''' ('''龍芯２''') is a family of {{arch|64}} [[MIPS]] low-power performance desktop processors developed by the [[Institute of Computing Technology of the Chinese Academy of Sciences]] (ICT) in 2003. The Godson 2 processors are now developed by [[Loongson Technology]] (which was co-founded by ICT) and sold as low-power embedded and desktop processors. The Godson 2 is famous for being the first [[Chinese]] developed {{arch|64}} microprocessors as well as the first Chinese processors to break the gigahertz frequency.
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'''Godson 2''' is a family of {{arch|64}} [[MIPS]] low-end desktop processors developed by the [[Institute of Computing Technology of the Chinese Academy of Sciences]] (ICT) in 2003. The Godson 1 processors are now developed by [[Loongson Technology]] (which was co-founded by ICT) and sold as low-power embedded and desktop processors. The Godson 2 is famous for being the first [[Chinese]] developed {{arch|64}} microprocessors.
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== Overview ==
 
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{{main|loongson/microarchitectures/gs464|l1=GS464 µarch}}
 
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The Godson 2 family of microprocessors started out in [[2002]] by the [[Institute of Computing Technology of the Chinese Academy of Sciences]] (ICT) after the successful design of the first {{\\|Godson 1}}. The Godson 2 series is based on a more ambitious goal with high efficiency and high performance in mind. Godson 2 processors are designed as general purpose {{arch|64}} [[MIPS64]]-like processors. At the time they were marketed as "MIPS-like" due to not having a proper license from [[MIPS Technologies]]. A number of patented instructions were also omitted from the [[ISA]] for this reason. In August 2011 [[Loongson Technology]] officially licensed the [[MIPS32]] and [[MIPS64]] architectures from [[MIPS Technologies]] allowing them to label the chips as "MIPS-compatible".
 
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The first Godson 2, model {{\|2B}} which was introduced in 2003, became [[China]]'s first {{arch|64}} microprocessor. This model was fabricated using 6-metal [[0.18 µm process]] using [[CMOS]] technology.
 
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The next few successors introduced incrementally better clock speeds (doubling with each model) along with a larger cache and improved [[branch predictor]]s for triple the performance improvement each time. With the introduction of the {{\|2E}}, ICT reached 1 GHz clock frequency. This was the first such achievement for an entirely Chinese-based design. Those models were all manufactured on [[SMICS]]'s [[0.18 µm process]] as well.
 
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In October 2006, Loongson signed a strategic agreement with [[STMicroelectronics]] to fabricate the Godson chips. Later models started using ST's [[90 nm process]] followed by [[65 nm]].
 
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The introduction of the {{\|2E}} brought about higher integration with the introduction of an on-die [[northbridge]], incorporating a DDR1 memory controller. With the launch of the {{\|2F}} in 2008, ICT improved their integrated memory controller capabilities and started integrating some components of the [[southbridge]] as well ([[HyperTransport]], [[PCI]]/[[PCI-E]]).
 
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In [[2011]] Loongson introduced their first complete [[system-on-chip]], the {{\|2H}}. The chip incorporated both the [[northbridge]], [[southbridge]] (integrating things such as [[PCIe]], [[SATA]], and a [[USB]] controller), and a licensed low-power [[Vivante]] {{vivante|GC800}} GPU. The 2H is based on Loongson's {{\\|GS464V}} architecture which incorporates the [[MIPS SIMD]] extension. The {{\|2G}} can serve as a standalone SoC powering low-power [[nettop]]s and [[tablet]]s or in slave mode, serving as a complete chipset solution to the more power {{\\|Godson 3}} series of processors.
 
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Godson 2 processors can be found in many low end laptops and embedded hardware manufactured by [[Lemote Technology]].
 
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{{clear}}
 
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== Members ==
 
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<!-- NOTE:
 
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          This table is generated automatically from the data in the actual articles.
 
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          If a microprocessor is missing from the list, an appropriate article for it needs to be
 
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          created and tagged accordingly.
 
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          Missing a chip? please dump its name here: http://en.wikichip.org/wiki/WikiChip:wanted_chips
 
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{{comp table start}}
 
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<table class="comptable sortable tc12 tc13">
 
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<tr class="comptable-header"><th>&nbsp;</th><th colspan="8">List of Godson-2 Processors</th></tr>
 
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<tr class="comptable-header"><th>&nbsp;</th><th colspan="6">Processor</th><th colspan="2">[[IGP]]</th></tr>
 
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{{comp table header 1|cols=Launched, Process, Frequency, L1$, L2$, Power, Name, Frequency}}
 
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{{#ask: [[Category:microprocessor models by loongson]] [[instance of::microprocessor]] [[microprocessor family::Godson 2]]
 
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|?full page name
 
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|?model number
 
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|?first launched
 
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|?process
 
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|?base frequency#MHz
 
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|?l1$ size#KiB
 
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|?l2$ size#KiB
 
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|?power dissipation
 
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|format=template
 
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|?integrated gpu
 
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|?integrated gpu base frequency
 
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|template=proc table 3
 
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|userparam=10
 
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|mainlabel=-
 
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|sort=model number
 
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|order=asc
 
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}}
 
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{{comp table count|ask=[[Category:microprocessor models by loongson]] [[instance of::microprocessor]] [[microprocessor family::Godson 2]]}}
 
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</table>
 
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{{comp table end}}
 

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Facts about "Godson 2 - Loongson"
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designerInstitute of Computing Technology of the Chinese Academy of Sciences + and Loongson +
first announced2003 +
first launchedOctober 17, 2003 +
full page nameloongson/godson 2 +
instance ofmicroprocessor family +
instruction set architectureMIPS64 +
main designerInstitute of Computing Technology of the Chinese Academy of Sciences +
manufacturerSMICS + and STMicroelectronics +
microarchitectureGS464 +
nameGodson 2 +
process180 nm (0.18 μm, 1.8e-4 mm) +, 90 nm (0.09 μm, 9.0e-5 mm) +, 65 nm (0.065 μm, 6.5e-5 mm) + and 130 nm (0.13 μm, 1.3e-4 mm) +
technologyCMOS +
word size64 bit (8 octets, 16 nibbles) +