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Topic: Cyrix

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In the News (Thu 21 Mar 19)

  Cyrix - Wikipedia, the free encyclopedia
Cyrix was a CPU manufacturer that began in 1988 as a specialist supplier of high-performance math co-processors for 286 and 386 systems.
Later in 1995 Cyrix released its best-known chip, the 6x86, which was the first Cyrix CPU to exceed the performance of the Intel chip it was intended to compete against.
Cyrix had always been a fabless company: Cyrix designed and sold their own chips, but contracted the actual Semiconductor manufacturing to an outside foundry.
en.wikipedia.org /wiki/Cyrix   (1960 words)

 Olympus MIC-D: Integrated Circuit Gallery - Cyrix 6x86 Microprocessor
As with the AMD K5 and K6, Cyrix 6x86s received a P-rating that enabled the consumer to compare these clones to Intel Pentium performance, although internally, they are very different designs and not always compatible.
Cyrix, a California Silicon Valley upstart, along with fellow clone masters Advanced Micro Devices, employed the reverse engineering concepts pioneered by the Japanese semiconductor industry to match and then leapfrog rival Intel's microprocessor innovations.
Cyrix, with its partner IBM, continued the line with the 6x86L and 6x86MX processors with power ratings up to 233 MHz clock speeds, more refined fabrication techniques (from 0.65 down to 0.35 micron technology), and lower power dissipations.
www.olympusmicro.com /micd/galleries/chips/cyrix686.html   (416 words)

 Cyrix Cx5x86 - Wikipedia, the free encyclopedia
The Cyrix 5x86 processor was based on a scaled-down version of the "M1" core used in the Cyrix 6x86, which provided 80% of the performance for a 50% decrease in transistors over the 6x86 design.
The similarly-named SGS-Thomson ST5x86 and IBM IBM5x86C were licensed rebrandings of the Cyrix design (IBM and ST physically produced Cyrix's CPUs for them), marketed separately but identical for practical purposes, apart from the availability of a 75 MHz edition which Cyrix did not bring to market, and slight differences in voltage requirements.
The Cyrix 5x86 design, however, should not be confused with the similarly-named AMD Am5x86 which was essentially a fast 486 (not an all-new design like the Cyrix part) but which had broadly similar performance, used the same Socket 3, and was introduced at the end of the same year.
en.wikipedia.org /wiki/Cyrix_Cx5x86   (393 words)

 The Cyrix 6x86 FAQ - Processor Identification and Replacement
As I understand it, these chips, and their Cyrix equivalents have a "bug" which Microsoft has gotten around by disabling the cache when the chip is used with the NT4.0 operating system thus decreasing performance by 30% and effectively making the chip useless under the NT4.0 operating system.
Cyrix has agreed to exchanged chips sold under their name so I would assume IBM (since it is the same chip, with the same bug) is doing the same.
Cyrix needs only to see the receipt of sale for the chip and a receipt for windows NT4.0 and a creditcard number to which the new chip can be charged IF the defective chip is not returned.
www.realworldtech.com /altcpu/subpages/6x86faq/faq5of7.htm   (2621 words)

Cyrix was a CPU manufacturer begun in 1988 as a specialist supplier of high-performance math co-processors for 286 and 386 systems.
Cyrix had always been a fabless company: Cyrix designed and sold their own chips, but contracted the actual semiconductor-manufacturing to an outside foundry.
This provided Cyrix with an extra marketing arm and access to National Semiconductor fab plants, which were originally constructed to produce RAM and high-speed telecommunications equipment.
www.solarnavigator.net /sponsorship/cyrix.htm   (1909 words)

 Cyrix Corporation -- A Legacy of Compatibility
Cyrix Corporation is a leading supplier of high-performance processors to the personal computer industry.
Cyrix also simulates the most complex and unique portions of every major operating system, past and present, to ensure identical function to established x86 operating standards and robust performance in OS tests.
Cyrix processors also are beta tested by selected hardware vendors and personal computer manufacturers to verify hardware compatibility and ease of connection to existing circuitry.
www.alaska.net /~akusedpc/pages/cyrix/compatib.htm   (1030 words)

 Cyrix poised to return to spotlight
Cyrix will further up the ante by the third quarter of next year by introducing a follow-up code-named MXi, which will carry a PR-300 performance rating and run internally at 250-MHz on an 83-MHz system bus, he added.
Cyrix also is bullish on its supply capabilities, now that the company has entered into a foundry agreement with Taiwan Semiconductor Manufacturing Co. Ltd., (TSMC) said Swearingen.
As a result, Cyrix next year expects to be able to supply between 10 million and 15 million processors, as compared to the 1.4 million chips that are shipped in the current quarter from IBM, which currently serves as the sole maker of Cyrix-designed processors, Swearingen said.
www.networkworld.com /news/1997/1121cyrix.html   (905 words)

 What is Cyrix 6x86? processor FPU Write-Back Cache 3d Gaming   (Site not responding. Last check: 2007-10-23)
Cyrix, by this time, was a major player in the alternative processor market.
Cyrix had had a reputation for lagging in the area of performance, and the M1 was not an exception.
Cyrix tried to combat this issue with the 6x86L processor.
bugclub.org /beginners/processors/Cyrix-6x86.html   (237 words)

 Cyrix Corp. v. Intel Corp.
Cyrix sought a declaration that it did not infringe the Intel patents, claiming immunity on the ground that IBM and ST were both licensed under the patents.
Cyrix's view was that because IBM and ST acted within the scope of their respective licenses from Intel, its sales of microprocessors were shielded from any holding of infringement, the microprocessors having been obtained from authorized licensees.
The substance of the arrangement between Cyrix and ST and ST and ST-Italy is that when Cyrix needs wafers, it issues a purchase order to ST. ST then either manufactures the wafers itself at its Carrollton, Texas, facility or arranges for ST- Italy to manufacture the wafers at its Italian facility.
www.ll.georgetown.edu /federal/judicial/fed/opinions/95opinions/95-1246.html   (3216 words)

 Cyrix - The Processor Emporium (UK)   (Site not responding. Last check: 2007-10-23)
Cyrix was for many years another company producing licence built processors fo Intel until they too chose to create their own processors.
Cyrix like AMD produced licence built "x86" processors for Intel during the years of the 80286 and 80386.
It was with the introduction of the Cyrix 486 DX-4, that Cyrix decided to adopt their own system of naming processors, and thus gave it somewhat confusingly the name of Cyrix 5x86, although the chip was a 486 design.
www.baznet.freeserve.co.uk /Cyrix-history.htm   (420 words)

 CNN - The Cyrix M II-300: Pentium power for less - June 8, 1998
Cyrix will offer an M II-333 and an M II-350 by summer, the latter designed to work with a new 100-MHz motherboard.
Apart from IBM (which manufactures Cyrix chips), Acer and Compaq are the only major vendors that have been willing to take a chance on Cyrix, and neither still offers a Cyrix-based desktop PC.
Cyrix officials say that their chip, which costs about the same as Intel's new Celeron chip, leaves the larger company's offering in the dust -- and when it comes to business apps, they're right.
www.cnn.com /TECH/computing/9806/08/cyrix.idg/index.html   (1082 words)

 JC's Cyrix Jalapeno Preview   (Site not responding. Last check: 2007-10-23)
Cyrix took the step to deepen the pipeline of their chips.
A 600MHz Cyrix chip that performs equal to or near to a 666MHz Intel Coppermine would have a chance in the gaming community, depending on how well the world adapts to the idea of not buying separate video cards for their systems.
Cyrix used to be an independant company, and other companies fabbed chips for them.
www.jc-news.com /pc/article.cgi?Cyrix/Jalapeno_Preview   (2720 words)

 UGeek Rants and Raves - Reader Rant about Cyrix processors   (Site not responding. Last check: 2007-10-23)
I am happy that e-machines is selling Cyrix computers for dirt cheap because now I can e-mail my less-fiscally-endowed friends who couldn't afford a computer before Cyrix started challenging Intel's dominance in the CPU arena.
Cyrix is good for us all, whether we use their products or not.
This means that the company that made the computer with the Cyrix in it probably used a cheap MB, cheap RAM, cheap video, cheap case, cheap fans, cheap PS, and so on, to save money.
www.geek.com /rants/rcyrixbad.htm   (476 words)

 No buyers for Cyrix? - Forbes.com   (Site not responding. Last check: 2007-10-23)
This is the latest in the sad tale of Cyrix, which was acquired by National in 1997 for $550 million.
Cyrix, then an unprofitable, cash-starved microprocessor maker based in Richardson, Tex., was key to National Chief Executive Brian Halla's desire to place National in the "system on a chip" business.
Cyrix also plans to support a 133 MHz front side bus on Gobi, which is likely to put the chip on an even keel with Celeron chips.
www.forbes.com /1999/06/08/mu2.html   (733 words)

DOSSIER: Cyrix's first M1 chip, the 6x86-100, is crippled by a monstrously large die that's difficult and expensive to manufacture.
Cyrix is ramping up production of both the 6x86-100 and the M1rx-120 late this year, but don't expect to see high volumes of either chip until 1996.
Although Cyrix has had trouble getting the 6x86 into production, the company now appears well-positioned to take advantage of the explosive growth in the PC market.
www.byte.com /art/9511/sec7/art5.htm   (583 words)

 HardwareCentral - Cyrix 6x86 Family Chips.
The 6x86 is Cyrix's sixth generation processor, also nicknamed the M1.
Cyrix has almost completely shifted its attention to this new chip.
In one chip, Cyrix integrates the processor, based on the old Cyrix 5x86, with the graphics controller, DRAM controller, and PCI bus interface.
www.hardwarecentral.com /hardwarecentral/reports/article.php/3580391   (664 words)

 UGeek Geek News - NatSemi to sell Cyrix   (Site not responding. Last check: 2007-10-23)
Now, Cyrix and a manufacturing plant that makes its chips is up for grabs.
Cyrix used to keep pace with the other chip makers, even though its pace was a "PR" rating and not actually MHz.
The Cyrix release schedule seems to have been "held up" while National Semi put together some grand "system on a chip" plan that never saw the light of day.
www.geek.com /techupdate/may99/cyrixgone.htm   (270 words)

 Cyrix company information
This phone number is a division of VIA and only supports the VIA Cyrix processors (Cyrix MII and VIA Cyrix III).
Cyrix Corporation, a subsidiary of National Semi Conductor from November of 1997, is one of the leading suppliers of processor solutions for the personal computer market.
June 30, 1999 - VIA Technologies to acquire Cyrix from Texas Instruments.
www.computerhope.com /comp/cyrix.htm   (104 words)

 Print - Cyrix plans $500 computer that runs NT 5.0   (Site not responding. Last check: 2007-10-23)
Cyrix Corporation, makers of the Intel x86-compatible 6x86 line of CPUs, is planning a low-cost platform for business computers that would enable $500 computers that could run Windows NT 5.0.
Cyrix keeps costs low by incorporating memory, audio, video, and PCI controllers on a single chip, rather than with add-on cards.
Cyrix worked with Microsoft to develop drivers for the system that work with Windows NT 5.0 and both companies will demonstrate the systems next week at Fall Comdex.
www.windowsitpro.com /articles/print.cfm?articleid=17458   (401 words)

 The Cyrix 6x86 FAQ - Software
Cyrix says it hasn't identified the specific problem in its 6x86 processor that caused the instability during Microsoft's testing.
Cyrix was unable to specify what changes were made in the chip or the manufacturing process between revisions 2.6 and 2.7 that may have fixed the problem.
Others think that it is either a Microsoft conspiracy against Cyrix because the problem did not show up in public betas or that Microsoft did a poor job of testing Windows NT 4.0 on the Cyrix platform and used equipment not certified by Cyrix.
www.realworldtech.com /altcpu/subpages/6x86faq/faq4of7.htm   (2029 words)

 AnandTech: The New VIA Cyrix III: The Worlds First 0.15 Micron x86 CPU   (Site not responding. Last check: 2007-10-23)
Cyrix lay on the brink of destruction in August of 1999 when seemingly out of the blue Taiwanese chip manufacturer VIA swooped in and bought the dying company from National Semiconductor.
Although the new Cyrix III chip bore the Cyrix name, it was powered by the IDT developed Centaur x86 microprocessor core, code named the Samuel core.
Cyrix enthusiasts bowed their head in shame: it seemed that the die shrink and decrease in power consumption that came with the Samuel powered Cyrix III were not enough to save the Cyrix name.
www.anandtech.com /showdoc.html?i=1396   (957 words)

 Tim's IBM 8570 pages: Cyrix Cx486DRx2 CPU & Friends
Although the focus here is the Cx486DRx2, it does share logic with the other members of this Cyrix DLC/SLC family and therefore the information here *might* be of use to you if you have one of these other processors.
Another issue that gets thrown into this are DMA events: when a device request a direct memory access (like a disk drive) it would change and therefore invalidate the current contents of the L1 cache.
The system is a PS/2 8580 with a Cyrix 486DX 20/40 MHz processor, 16 MB of RAM, 4 MB on the system board, and two memory cards, one with 4 MB and one with 8 MB.
www.gilanet.com /OhlandL/8570_Tim_OConnor/cyrx.htm   (2087 words)

 National Semiconductor buys Cyrix for half a billion dollars (600) - vnunet.com
The deal with IBM involves Cyrix designing the chips at its Boulder, Colorado RandD centre, while IBM produces the wafers at its fabrication plants.
Jay Swent has been acting CEO of Cyrix since Jerry Rogers was dropped by the board in December 1996 and the company lost $5.3 million in its most recent quarter.
Cyrix?s future would have looked decidedly bleak in the wake of Intel?s latest price cuts, announced yesterday.
www.vnunet.com /vnunet/news/2093509/national-semiconductor-buys-cyrix-half-billion-dollars-600   (764 words)

 NatSemi-Cyrix deal casts shadow over IBM - ZDNet UK News
The combination of National Semiconductor and Cyrix casts an immediate shadow over the future of the IBM-Cyrix relationship.
Cyrix has no chip fabrication facility of its own and has recently relied on IBM Microelectronics to manufacture most of its parts.
The news that Cyrix is to be acquired came as a surprise to those involved in the IBM CPU world; IBM's press conference to announce shipping of the 6x86MX only took place last week.
news.zdnet.co.uk /hardware/chips/0,39020354,2066308,00.htm   (416 words)

 PC World - Via Speeds Cyrix, Releases Athlon Companion
Cyrix hits 700 MHz, while chip set supports AMD Athlon and DDR SDRAM.
Via Technologies has unveiled the speediest Cyrix III processor to date--hitting 700 MHz--and is shipping in volume a new chip set tailored to Advanced Micro Devices' newest Athlon.
The 700-MHz Cyrix III processor is one speed grade faster than the 667-MHz version that Via introduced last November.
www.pcworld.com /news/article.asp?aid=39011   (557 words)

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