About: X704

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The x704 is a microprocessor that implements the 32-bit version of the PowerPC instruction set architecture (ISA) developed by Exponential Technology. The microprocessor was notable for its high clock frequency (for the time, circa 1997) in the range of 400 to 533 MHz, its use of bipolar transistors for logic and CMOS circuits for memory, and its failure to see use in an Apple Macintosh, the opposite of what industry observers such as Microprocessor Report expected. Exponential Technology eventually failed as a result of the x704's lack of success, but some of its former employees founded Intrinsity, a start-up that developed a high clock frequency MIPS implementation, FastMATH. The company has been acquired by Apple and licensed Fast14 dynamic logic to third parties such as ATI for their

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rdfs:label	X704 (en)
rdfs:comment	The x704 is a microprocessor that implements the 32-bit version of the PowerPC instruction set architecture (ISA) developed by Exponential Technology. The microprocessor was notable for its high clock frequency (for the time, circa 1997) in the range of 400 to 533 MHz, its use of bipolar transistors for logic and CMOS circuits for memory, and its failure to see use in an Apple Macintosh, the opposite of what industry observers such as Microprocessor Report expected. Exponential Technology eventually failed as a result of the x704's lack of success, but some of its former employees founded Intrinsity, a start-up that developed a high clock frequency MIPS implementation, FastMATH. The company has been acquired by Apple and licensed Fast14 dynamic logic to third parties such as ATI for their (en)
dcterms:subject	PowerPC implementations
Wikipage page ID	22760219 (xsd:integer)
Wikipage revision ID	1119257459 (xsd:integer)
Link from a Wikipage to another Wikipage	PowerPC BiCMOS GPU Arithmetic logic unit MIPS architecture Byte (magazine) ATI Technologies Exponential Technology Ball grid array PowerPC implementations Floating-point unit Intrinsity Bipolar junction transistor Apple, Inc Apple Macintosh CMOS Instruction set architecture Microprocessor Microprocessor Report Metal oxide semiconductor Superscalar Dynamic logic (digital logic)
Link from a Wikipage to an external page	https://web.archive.org/web/19970712065424/http:/www.byte.com/art/9612/sec11/art1.htm%7Carchive-date=1997-07-12 https://web.archive.org/web/19970712071613/http:/www.byte.com/art/9611/sec6/art13.htm%7Carchive-date=1997-07-12 http://www.byte.com/art/9611/sec6/art13.htm%7Curl-status=dead http://www.byte.com/art/9612/sec11/art1.htm%7Curl-status=dead
sameAs	X704 X704 X704 X704
dbp:wikiPageUsesTemplate	dbt:Cite_journal dbt:Cite_magazine dbt:POWER,_PowerPC,_and_Power_ISA dbt:Electron-stub
has abstract	The x704 is a microprocessor that implements the 32-bit version of the PowerPC instruction set architecture (ISA) developed by Exponential Technology. The microprocessor was notable for its high clock frequency (for the time, circa 1997) in the range of 400 to 533 MHz, its use of bipolar transistors for logic and CMOS circuits for memory, and its failure to see use in an Apple Macintosh, the opposite of what industry observers such as Microprocessor Report expected. Exponential Technology eventually failed as a result of the x704's lack of success, but some of its former employees founded Intrinsity, a start-up that developed a high clock frequency MIPS implementation, FastMATH. The company has been acquired by Apple and licensed Fast14 dynamic logic to third parties such as ATI for their GPUs. The x704 is a superscalar microprocessor that issues up to three instructions per cycle to an arithmetic logic unit (ALU), floating-point unit (FPU) and branch unit. To realize the short cycle times, the caches were kept small, limiting its performance. There are three levels of cache. The first consisted of separate 2 KB instruction and data caches. These are direct-mapped. The L2 cache is on-die and is 32 KB in size. It is eight-way set set-associative. The L3 cache is larger, supporting capacities of 512 KB to 2 MB, and is located externally. The x704 contained 2.7 million transistors, of which 0.7 million were bipolar transistors and 2.0 million were metal oxide semiconductor (MOS), and measured 15 mm by 10 mm (150 mm2). It was fabricated in a 0.5 µm BiCMOS process with six levels of interconnect. It uses 3.6 and 2.1 V power supplies and dissipates less than 85 W at 533 MHz. The x704 is packaged in a 356-ball ball grid array (BGA). (en)
gold:hypernym	Microprocessor
prov:wasDerivedFrom	wikipedia-en:X704?oldid=1119257459&ns=0
page length (characters) of wiki page	3261 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:X704
is Link from a Wikipage to another Wikipage of	List of computer technology code names Exponential Technology List of PowerPC processors PowerPC 600
is foaf:primaryTopic of	wikipedia-en:X704

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