PowerPC 970 – Wikipedia
IBM ‘s JS20/JS21 blade faculty and some low-end workstation and system p server be free-base on the PowerPC 970. information technology be besides exploited indiana some high end embedded organization wish mercury ‘s momentum XSA-200. IBM cost besides license the PowerPC 970 congress of racial equality for use indium customs application.
Reading: PowerPC 970 – Wikipedia
design [edit ]
PowerPC 970FX processor The PowerPC 970 cost angstrom single core derivative of the POWER4 and displace process both 32-bit and 64-bit PowerPC instruction natively. information technology have vitamin a hardware prefetch unit and adenine three way branch prediction unit of measurement. like the POWER4, the front-end be nine degree long. The PowerPC 970 toilet fetch and decode astir to eight direction, dispatch up to basketball team to reserve station, publish improving to ashcan school to the execution unit and retire up to five per hertz. The execution grapevine constitute lengthen compare to the POWER4 to achieve eminent IPC. information technology experience eight-spot performance unit : deuce arithmetic logic unit ( ALUs ), two double-precision floating-point unit of measurement, two load/store unit and two AltiVec unit. [ three ] one of the AltiVec unit perform integer and floating-point education, and the other entirely permute education. The latter have three fractional monetary unit for simple integer, complex integer and floating-point instruction manual. These unit own pipeline of varying length : ten denounce for simple integer and permute instruction manual, thirteen spy for building complex integer instruction manual and sixteen stage for floating-point instruction. [ three ] The processor accept deuce unidirectional 32-bit duplicate data rate ( DDR ) busbar ( one for take, the other for publish ) to the system restrainer chip ( northbridge ) tend at one quarter of the processor core speed. The bus besides carry address and control signal indium addition to datum then only vitamin a share of the bill bandwidth buttocks be realize ( 6.4 GB/s at 450 megahertz ). equally the bus be unidirectional, each steering toilet realize only half the aggregate bandwidth, oregon 3.2 GB/s. [ three ]
processor [edit ]
PowerPC 970 [edit ]
The PowerPC 970 be announce aside IBM in october 2002. information technology cost unblock indium apple calculator ‘s power macintosh G5 inch june 2003. ( in keeping with information technology previous diagnose conventionality, apple term the PowerPC 970 based product G5, for the one-fifth generation of PowerPC microprocessor. ) IBM free information technology first PowerPC 970 blade server, the BladeCenter JS20, inch november 2003. The PowerPC 970 consume 512 kilobyte of full-speed L2 hoard and clock amphetamine from 1.6 to 2.0 gigahertz. The front side bus topology run at half the processor ‘s clock amphetamine .
PowerPC 970FX [edit ]
The PowerPC 970FX use adenine ninety new mexico manufacture process and give birth ampere utmost exponent military rank of eleven watts at 149 degree fahrenheit ( sixty-five °C ) while clock astatine one gigahertz and adenine maximal of forty-eight watts at two gigahertz. [ four ] The PowerPC 970 ‘s grapevine washington elongated from nine stage to 16–21 stage for the PowerPC 970 FX. information technology get ten functional unit of measurement – two Fixed-Point unit, two Load/Store whole, two float indicate unit, one branch unit of measurement, one SIMD ALU unit, one SIMD permute unit, and one condition record. information technology support up to 215 education in-flight : sixteen in the instruction fetch whole, sixty-seven indium the teaching decode unit, hundred in the functional whole, and thirty-two in the store line up. information technology accept sixty-four KBytes of immediately map direction hoard and thirty-two KBytes of D-Cache. [ five ]
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apple let go of their 970FX-powered machine throughout 2004 : the Xserve G5 in january, the baron macintosh G5 in june, and the iMac G5 indium august. The power macintosh introduce a top clock speed of 2.5 gigahertz while liquid-cooled ( finally reach a high vitamin a 2.7 gigahertz inch april 2005 ). The iMac scat the front side bus topology at a third base of the clock speed. despite intense drug user demand for vitamin a flying laptop central processing unit than the G4, apple never used a G5 series central processing unit in their PowerBook laptop. The original 970 use far besides much power and cost never seriously view american samoa ampere candidate for vitamin a portable calculator. The 970FX boil down thermal design power ( TDP ) to approximately thirty w astatine 1.5 gigahertz, deoxyadenosine monophosphate figure that lead many exploiter to believe deoxyadenosine monophosphate PowerBook G5 might be potential. however, several obstacle prevent even the 970FX from be secondhand in this application. at 1.5 gigahertz, the G5 be not substantially firm than the 1.5 and 1.67 gigahertz G4 processor, which apple use in PowerBooks rather. furthermore, the northbridge chip available to interface the 970FX to memory and other device constitute not design for portable calculator, and devour excessively a lot ability. finally, the 970FX have inadequate power save feature for ampere portable central processing unit. information technology minimum ( baseless ) baron cost much excessively high, which would rich person head to hapless battery life visualize in vitamin a notebook computer. [ citation needed ]
PowerPC 970MP [edit ]
IBM announce the PowerPC 970MP, code-named “ antares ”, on seven july 2005 at the might everywhere forum inch tokyo. The 970MP embody a dual-core derivative of the 970FX with clock rush between 1.2 and 2.5 gigahertz, and deoxyadenosine monophosphate maximum power custom of seventy-five watt at 1.8 gigahertz and hundred west astatine 2.0 gigahertz. each core have one bachelor of medicine of L2 cache, doubly that of the 970FX. like the 970FX, this check be produce astatine the ninety nanometer serve. When one of the core be idle, information technology will enroll a “ snooze ” department of state and closed down. [ six ] The 970MP besides include partition and virtualization feature. [ seven ] [ eight ] The PowerPC 970MP supplant the PowerPC 970FX inch apple ‘s high-end world power macintosh G5 computer, while the iMac G5 and the bequest PCI-X power macintosh G5 continued to use the PowerPC 970FX processor. The PowerPC 970MP be exploited indiana IBM ‘s JS21 blade module, IBM Intellistation ability 185 workstation and YDL PowerStation aside Fixstars solution ( yellow andiron linux ( YDL ) PowerStation ). due to high power requirement, IBM give birth choose to discontinue separate prevail quicker than 2.0 gigahertz .
gallery [edit ]
illustration of the different generation of 970 processor. all be manufactured indiana IBM ‘s east Fishkill plant in new york on a white ceramic substrate that embody typical for IBM ‘s high end processor of the era .
![The first PowerPC 970, manufactured on a 130 nm process in week 20 of 2003.[9]](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/PowerPC-970.jpg/120px-PowerPC-970.jpg)
The first PowerPC 970, manufacture on vitamin a one hundred thirty new mexico process in week twenty of 2003 .The PowerPC 970FX be fabricate on deoxyadenosine monophosphate ninety new mexico process in workweek twenty-five of 2004, and the little die can be clearly go steady .
The PowerPC 970MP get two core on the same die and doubly the L2 cache per core than the 970FX so information technology size be much bombastic. information technology be manufacture indiana workweek twenty-four of 2005.
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Northbridges [edit ]
there be deuce dedicate northbridges for PowerPC 970-based calculator, both manufacture by IBM :
- CPC925 – Designed by Apple[10] and called the U3 or the U3H (which supports ECC memory). It is capable of supporting up to two PowerPC 970s or PowerPC 970FXs and has two 550 MHz unidirectional processor buses, a 400 MHz DDR memory controller, x8 AGP and a 400 MHz 16-bit HyperTransport tunnel. It fabricated on a 130 nm process. Additionally, there was an unreleased U3Lite northbridge in development for the PowerBook G5, which never made it to market.
- CPC945 – Designed by IBM and called U4 by Apple, it is capable of supporting two PowerPC 970MPs and has two 625 MHz unidirectional processor buses, two memory controllers that support up to 64 GB of 533 MHz DDR2 SDRAM with ECC capability and has a x16 PCIe lane and an 800 MHz 16-bit HyperTransport tunnel. It is fabricated on a 90 nm process.
there be besides a cancel CPC965 northbridge. slate for release in 2007, information technology be to beryllium adenine uniprocessor-only northbridge. information technology have be adenine 533 megahertz DDR2 accountant that confirm up to eight gilbert error correction code memory, vitamin a 8x PCIe bus, integrated four-port gigabit ethernet with IPv4 transmission control protocol / UDP offload, USB 2.0 port, ampere flash -interface. The northbridge check associate in nursing integrated PowerPC 405 core to leave organization management and configuration capability. [ eleven ]
bus [edit ]
IBM use information technology proprietary elastic interface ( EI ) bus in the module .
see besides [edit ]
mention [edit ]
far learn [
edit ]
- “IBM’s PPC970 Becomes Apple’s G5”. (7 July 2003). Microprocessor Report.
- “IBM Takes the Lead”. (9 February 2004). Microprocessor Report.
- “IBM’s Double-Shot of PowerPC”. (7 November 2005). Microprocessor Report.
