Editing Cyrix (section)

== Manufacturing partners ==
[[Image:KL IBM 6x86MX.jpg|thumb|right|180px|6x86MX under the IBM name]]
Cyrix had always been a [[Fabless semiconductor company|fabless company]]: Cyrix designed and sold their own chips, but contracted the actual [[semiconductor manufacturing]] to an outside [[Foundry (electronics)|foundry]]. In the early days, Cyrix mostly used [[Texas Instruments]] production facilities and SGS Thomson (now [[STMicroelectronics]]). The Richardson, Texas office of [[VLSI Technology]] was also instrumental, as they provided workstations, EDA tools and ASIC design expertise to Cyrix engineers for their early design work. In 1994, following a series of disagreements with TI, and production difficulties at SGS Thomson, Cyrix turned to [[IBM Microelectronics]], whose production technology rivaled that of Intel.

As part of the manufacturing agreement between the two companies, IBM received the right to build and sell Cyrix-designed CPUs under the IBM name. While some in the industry speculated this would lead to IBM using 6x86 CPUs extensively in its product line and improve Cyrix's reputation, IBM continued to mostly use Intel CPUs, and to a lesser extent, AMD CPUs, in the majority of its products and only used the Cyrix designs in a few budget models, mostly sold outside of the United States. IBM instead sold its 6x86 chips on the open market, competing directly against Cyrix and sometimes undercutting Cyrix's prices.