x86-compatible processors have been designed, manufactured and sold by a number of companies, including: x86-processors for regular PCs
Intel AMD Zhaoxin HygonTom's Hardware, Homegrown Chinese CPUs bring Core i7 Raptor Lake performance to domestic gaming PCs — Hygon C86-4G lands between a Core i7-13700 and Core i7-14700, 27 Nov 2025. Archived on 6 Mar 2026.
In the past: Transmeta (discontinued its x86 line) Rise Technology (acquired by SiS, that sold its x86 (embedded) line to DM&P) IDT (Centaur Technology x86 division acquired by VIA) Cyrix (acquired by National Semiconductor) National Semiconductor (sold the x86 PC designs to VIA and later the x86 embedded designs to AMD) NexGen (acquired by AMD) Chips and Technologies (acquired by Intel) Texas Instruments (discontinued its own x86 line) IBM (discontinued its own x86 line and sold its manufacturing division to GlobalFoundries in 2015) UMC (discontinued its x86 line) NEC (discontinued its x86 line) VM TechnologyCBR, Kay Nishi’s VM Technology Has 80386-compatible Chip… (May 4, 1988)N. Komatsu, VM8600SP (in Japanese)OASYS LX-4500 (in Japanese) - laptop using the VM867S CPU (discontinued its x86 line) VIA Technologies (co-owns Zhaoxin joint venture, whose processors are based and continue VIA's x86 line)
x86-processors for embedded designs only
DM&P Electronics Vortex86 ZF Micro ZFx86,http://www.zfmicro.com/zfx86.html ZFx86 486 PC-in-a-Chip Cx486DX SoC RDC Semiconductorshttp://www.rdc.com.tw/ RDC Semiconductors x86 compatible RISC core (R8610，R8620，IAD series and EmKore series)RDC's newer SoC Series DP Kwazar SP (ДП КВАЗАР-ІС)DP Kwazar SP - As of October 2024, КР1810ВМ86 (Soviet/Ukraine 8086 clone) still appears on Kwazar's price list.Price list of DP KWAZAR-IS from 01.10.2024 Xlichip (R30460 embedded microcontroller)Xlichip, R30460芯片组 (in Chinese). Archived on 19 Jan 2026.
In the past: ALiALi, M6117C -- 386SX Embedded Microprocessor. Archived from the original on 4 May 1998. / ULiULi, M6117C 386SX Embedded Microcontroller. Archived from the original on 17 Apr 2004. / NvidiaNvidia, M6117C. Archived on 18 Apr 2025. - M6117C (386SX embedded microcontroller; went to ULi when ULi was spun off from ALi, then went to Nvidia when Nvidia acquired ULi) AuctorAuctor Corp, Single-Chip Maple engine for Windows CE / ACC MicroACC Micro, Maple Processor for Embedded Control and Embedded Computing Applications - Maple SoC (Cx486DX4CPU Galaxy, core at 100 to 133 MHz) Advantech - EVA-X4150 and EVA-X4300 (SoCs with 486SX-compatible processors at 150 MHz and 300 MHz, respectively)Advantech, x86-based SoC, archived on Feb 27, 2010 Innovasic - pin-compatible 80186/80188 clonesInnovasic, Product Literature, archived on Aug 11, 2018 Infinior - IMS16 series (Am186EM-compatible microcontrollers)Infinior Microsystems, IMS16C Tornado 16bit Embedded Processor User’s Manual, V1.11, 11 Feb 2003. Archived from the original on 11 mar 2006. Vadem - VG230 and VG330 (SoCs with NEC V30 CPU cores, manufacturing continued by Amphus)Amphus Inc, System-on-a-chip products SiS - SiS 55x (SoCs with Rise mP6-based CPU cores; About 200x,DM&P rebranded it to "original Vortex86") Bandai - SPGY-1000 series (SoCs with 186-compatible NEC V30MZ CPU cores, used in the WonderSwan series of handheld game consoles)WSMan rev. 7 - Bandai WonderSwan series - Technical Information, 17 Aug 2016. Archived on 8 Aug 2017. VAutomationVAutomation Inc, Products, archived on Oct 2, 2000 - offered synthesizable x86 cores, in particular the Turbo 186, that has been implemented in ASICs from numerous vendors, e.g.The CPUShack Museum, The Intel 80186 Gets Turbocharged – VAutomation Turbo186 Zoran Corporation: Vaddis 6 Genesis Microchip Inc: GM1601 Lantronix: DSTni-EX, DSTni-LXGridConnect, LX-001. Archived on 18 Sep 2020. Synergetic: EC-1Control Engineering, Synergetic launches EC-1 system-on-chip Pixelworks: PW164PixelWorks, New PW164 Imageprocessor from Pixelworks extends family of single-chip display controllers, 16 Aug 1999. Archived from the original on 24 Feb 2001. CAST — offered synthesizable x86 and x87 IP cores for use in ASICs and FPGAs, such as the C80186XL,CAST, 80186XL-Compliant Chip Replacement 16-bit Microcontroller Core. Archived from the original on 10 Oct 2013. C80187,CAST, C80187 Math Coprocessor Core. Archived from the original on 17 Nov 2007. and C387L.CAST, C387L Math Coprocessor Core. Archived from the original on 10 Oct 2013. STMicroelectronics: STPC Atlas (486 core at up to 133 MHz, embedded 2D graphics)
Open source x86 cores ao486https://opencores.org/project,ao486 ao486 at OpenCores open source FPGA implementation of the 486SX (currently targets the Terasic Altera DE2-115) S80186 open source 80186 compatible FPGA implementation Zet open source 80186 compatible FPGA implementation targeting the Xilinx ML403 and Altera DE1
x86-SoCs for mobile devices Rockchip (Intel SoFIA) Spreadtrum (Intel SoFIA)
Manufacturing-only of x86-processors designed by others GlobalFoundries (manufactures processors for AMD) IBM (manufactured processors for ZF Micro, Cyrix, VIA, NexGen, and Transmeta) TSMC (manufactures processors for AMD and VIA; discontinued production for Transmeta) Fujitsu (manufactures processors for VIA; manufactured processors for Transmeta)
In the past: UMC (manufactured processors for Rise, SiS, ALi, ULi and Nvidia; discontinued x86 production) National Semiconductor (manufactured processors for ZF Micro; discontinued x86 production) DEC (manufactured 486 processors for AMD; discontinued x86 production)Microprocessor Report (vol.9, no.1, Jan 23, 1995), "Shift To Pentium Begins In Earnest", pg. 4
Manufactured and sold under its own name of x86-processors designed by others Early Intel x86 CPU designs (up to the 80286) have in the past been second-sourced by the following manufacturers under licence from Intel:X86 CPU's GuideCPU Galerie - Prozessoren Manufacturer 8086/8088 80186/80188 80286 Notes AMD Later developed independent x86 CPU designs. Fujitsu Harris Corporation IBM Intersil Continued to manufacture x86 CPUs after being spun off from Harris in 1999. Matra Harris Semiconductors (MHS) Joint venture between Harris and Matra. Matsushita Mitsubishi NEC Later developed independent x86 CPU designs. OKI Renesas Continued Intersil's 8086/8088 product line after acquiring Intersil in 2017.Renesas, 80C88 CMOS 8-/16-Bit Microprocessor. Accessed on Sep 3, 2023. Archived on Jan 18, 2021. Rochester Electronics (REI) Manufactures other vendors' end-of-lifed chips under licence, on a built-to-order basis. Siemens
Manufacturers that have served as second sources for other x86 CPUs include: Manufacturer Second source of Sharp NEC V20/V30 Sony NEC V20/V30 Zilog NEC V20/V30 IBM Cyrix 486, 5x86, 6x86, 6x86MX SGS-Thomson Cyrix 486, 5x86, 6x86 Texas Instruments Cyrix 486 Rochester Electronics AMD Élan SC300Rochester Electronics, Elan SC300-33KC-G
Other/uncategorized Vendor Product Line Description Montage Technology Jintide Pairs Intel Skylake Xeon CPU cores with specially designed I/O tracing and analysis chips to help provide improved security. Made as a multi-chip module, mainly for use in Chinese servers.Ao Luo, Jintide® : A Hardware Security Enhanced Server CPU, HotChips 31, Aug 20, 2019Montage, Jintide CPU. Archived on Nov 13, 2020.TechRadar, Intel and AMD should not panic yet, but this Chinese vendor has repacked a Xeon CPU, May 25, 2020 MCST Elbrus 2000 Russian VLIW processor family, designed to run x86 code using dynamic binary translation. Space Electronics Inc. / Maxwell 80386DXRP Intel 386 CPUs repackaged in special radiation-hardened packages for use in space.Space Electronics Inc, Radiation Hardened 80386DXRPMaxwell Technologies, 80386DX Microprocessor, 32-bit, archived on Dec 5, 2008 Kombinat Mikroelektronik Erfurt U80601 East Germany 80286 clone, made in 1989–1990. Eagle Memories,The CPUShack Museum, Eagle Memories galleryMCCPU-World, MC 80386 microprocessor family 486DLC OEM rebranded variants of Cyrix 486DLC CPUs. Mitsubishi Strakerx86 CPU's Guide, Mitsubishi Straker. Accessed on Sep 3, 2023. Archived on Sep 3, 2023. Intel SmartDieIntel, SmartDie® products. Archived from the original on Feb 24, 1998. based products, packaging an Intel-provided CPU die in OEM-specific packages, mainly for use in ultracompact laptops. MicroModule Systems (MMS) GeminiThe CPUShack Museum, CPU of the Day: MicroModule Systems Pentium Gemini, 21 Sep 2012. Archived on 2 Oct 2012.Microprocessor Report, Embedded Pentium Comes on Board, 23 June 1997. Fujitsu (Pentium)x86 CPU's Guide, Fujitsu Pentium 133. Accessed on Sep 3, 2023. Archived on Feb 8, 2023. Shenzen State Microelectronics (SSMEC) SM486DX,SM486DX2 Pin-compatible i486 clones. Functionally indistinguishable from Intel 486 processors, but draw substantially less power.x86.fr, Investigating SSMEC’s (State Micro) 486s with the UCA, 25 Jun 2024. Archived on 14 Dec 2024.
See also List of former IA-32 compatible processor manufacturers
References