About: Alpha 21464

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The Alpha 21464 is an unfinished microprocessor that implements the Alpha instruction set architecture (ISA) developed by Digital Equipment Corporation and later by Compaq after it acquired Digital. The microprocessor was also known as EV8 (codenamed Araña). Slated for a 2004 release, it was canceled on 25 June 2001 when Compaq announced that Alpha would be phased out in favor of Itanium by 2004. When it was canceled, the Alpha 21464 was at a late stage of development but had not been taped out.

Attributes	Values
rdf:type	yago:WikicatDECMicroprocessors yago:Artifact100021939 yago:Chip103020034 yago:Conductor103088707 yago:Device103183080 yago:Instrumentality103575240 yago:Microprocessor103760310 yago:Object100002684 yago:PhysicalEntity100001930 yago:SemiconductorDevice104171831 yago:Whole100003553
rdfs:label	Alpha 21464 (en)
rdfs:comment	The Alpha 21464 is an unfinished microprocessor that implements the Alpha instruction set architecture (ISA) developed by Digital Equipment Corporation and later by Compaq after it acquired Digital. The microprocessor was also known as EV8 (codenamed Araña). Slated for a 2004 release, it was canceled on 25 June 2001 when Compaq announced that Alpha would be phased out in favor of Itanium by 2004. When it was canceled, the Alpha 21464 was at a late stage of development but had not been taped out. (en)
dcterms:subject	DEC microprocessors Superscalar microprocessors
Wikipage page ID	22759963 (xsd:integer)
Wikipage revision ID	1123364832 (xsd:integer)
Link from a Wikipage to another Wikipage	Router (computing) Memory controller University of Washington Compaq Out-of-order execution RDRAM Branch misprediction Pipeline (computing) Program counter Joel Emer DEC Alpha Alpha 21364 DEC microprocessors Glue logic Multi-core processor Itanium Superscalar microprocessors Dielectric Digital Equipment Corporation CMOS Copper interconnect Instruction set architecture Microprocessor Microprocessor Report Multiprocessing Low-K Simultaneous multithreading Superscalar Associative cache Set-associative Taped out Silicon-on-insulator Branch prediction
sameAs	Alpha 21464 Alpha 21464 Alpha 21464 Alpha 21464 Alpha 21464
dbp:wikiPageUsesTemplate	dbt:Cite_book dbt:Cite_journal dbt:Refbegin dbt:Refend dbt:Reflist dbt:Use_dmy_dates dbt:Harvid dbt:Digital_Equipment_Corporation
has abstract	The Alpha 21464 is an unfinished microprocessor that implements the Alpha instruction set architecture (ISA) developed by Digital Equipment Corporation and later by Compaq after it acquired Digital. The microprocessor was also known as EV8 (codenamed Araña). Slated for a 2004 release, it was canceled on 25 June 2001 when Compaq announced that Alpha would be phased out in favor of Itanium by 2004. When it was canceled, the Alpha 21464 was at a late stage of development but had not been taped out. The 21464's origins began in the mid-1990s when computer scientist Joel Emer was inspired by Dean Tullsen's research into simultaneous multithreading (SMT) at the University of Washington. Emer had researched the technology in the late 1990s and began to promote it once he was convinced of its value. Compaq made the announcement that the next Alpha microprocessor would use SMT in October 1999 at Microprocessor Forum 1999. At that time, it was expected that systems using the Alpha 21464 would ship in 2003. (en)
gold:hypernym	Microprocessor
prov:wasDerivedFrom	wikipedia-en:Alpha_21464?oldid=1123364832&ns=0
page length (characters) of wiki page	7704 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Alpha_21464
is Link from a Wikipage to another Wikipage of	Branch predictor Multithreading (computer architecture) Comparison of CPU microarchitectures DEC Alpha Alpha 21264 Alpha 21364 Tukwila (processor) Simultaneous multithreading
is foaf:primaryTopic of	wikipedia-en:Alpha_21464

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