This article provides a list of motherboard chipsets made by Intel, divided into three main categories: those that use the PCI bus for interconnection (the 4xx series), those that connect using specialized "hub links" (the 8xx series), and those that connect using PCI Express (the 9xx series). The chipsets are listed in chronological order.

Pre-chipset situation An earlier chipset support for Intel 8085 microprocessor can be found at MCS-85 family section.

Early IBM XT-compatible mainboards did not yet have a chipset, but relied instead on a collection of discrete TTL chips by Intel: the 8284 clock generator the 8288 bus controller the 8254 programmable interval timer the 8255 parallel I/O interface the 8259 programmable interrupt controller the 8237 DMA controller

Early chipsets To integrate the functions needed on a mainboard into a smaller number of ICs, Intel licensed the ZyMOS POACH chipset for its Intel 80286 and Intel 80386SX processors (the 82230/82231 High Integration AT-Compatible Chip Set). The 82230 covers this combination of chips: 82C284 clock, 82288 bus controller, and dual 8259A interrupt controllers among with other components. The 82231 covers this combination of chips: 8254 interrupt timer, 74LS612 memory mapper and dual 8237A DMA controller among with other components. Both set were available US$60 for 10 MHz version and US$90 for 12 MHz version in quantities of 100.Ormsby, John, Editor, "New Product Focus: Components: Intel's 82X3X Chip-set Handles Logic Functions That Once Required The Services Of Sources Of Chips", Intel Corporation, Microcomputer Solutions, January/February 1988, page 13 This chipset can be used with an 82335 High-integration Interface Device to provide support for the Intel 386SX.Lewnes, Ann, "Welcome 80386SX", Microcomputer Solutions, September/October 1988, page 2

List of early Intel chipset includes:

82077AA CHMOS Single-Chip Floppy Disk Controller for the 32-bit systems.Intel Corporation, "82077SL CHMOS Single-Chip Floppy Disk Controller", May 1991, Order Number: 290410-001Chen, Allan, "The 386 SL Microprocessor Superset: The 32-bit Notebook Hits the Road", Intel Corporation, Microcomputer Solutions, January/February 1991, page 2 82091AA EISA/ISA – Advanced Integrated Peripheral (AIP), includes: floppy disk controller, 2× UARTs, parallel port, IDE controller, oscillator, etc. 82310 MCA family chipset – announced in April 1988. This chipset also supports the 80386SX based machines as well. Which it does includes:Intel Corporation, "NewsBit: Intel Technology Powers New Tandy PC", Microcomputer Solutions, July/August 1988, page 1 82306 Local Channel Support Chip 82307 DMA Controller/Central Arbiter 82308 Micro Channel Bus Controller 82309 Address Bus Controller 82706 VGA Graphics Controller 82311 MCA – announced in November 1988. Includes: 82303 and 82304 Local I/O Channel Support Chips, 82307 DMA Controller/Central Arbiter, 82308 Micro Channel Bus Controller, 82309 Address Bus Controller, 82706 VGA Graphics Controller, 82077 Floppy Disk Controller. 82320 MCA – announced in April 1989. This chipset supports the i486 microprocessor. It was expected to be available in the later half of 1989. 82340SX PC AT – announced in January 1990, it is the Topcat chipset licensed from VLSI. 82340DX PC AT – announced in January 1990, it is the Topcat chipset licensed from VLSI. 82350 EISA – announced in September 1988. This chipset supports the i486 microprocessor. It was expected to be available in the later half of 1989.Intel Corporation, "NewsBits: Intel Introduces EISA and MCA Support for i486 Microprocessor", Microcomputer Solutions, July/August 1989, page 1 82350DT EISA – announced in April 1991. This version supports Intel486 DX2 CPU.Hodson, Gerri, "The Intel486 DX2 Microprocessor: Speed-Doubler Technology", Intel Corporation, Microcomputer Solutions, May/June 1992, page 2-5 82360SL – announced in October 1990. It was a chipset for the mobile 80386SL and 80486SL processors. It integrated DMA controller, an interrupt controller PIC, serial and parallel ports, I/O Control, NMI, Real Time Clock, Timers and power-management logic for the processor. This chipset contains 226,000 transistors using the one-micron CHMOS IV technology. It was available for US$45 in quantities of 1,000. 82365SL – PC Card Interface Controller. This support PCMCIA 2.0 standard using the Exchangeable Card Architecture which supports both I/O and memory ExCA-compliant cards. It uses the Intel386SL power-management features. This was available for US$35 in samples of quantities of 1,000-unit.Intel Corporation, "New Product Focus: Components: First Exchangeable Plug-In Cards Support PCMCIA", Microcomputer Solutions, November/December 1991, page 11 82380 – High Performance 32-Bit DMA Controller with Integrated System Support Peripherals. This chipset has 20-level programmable interrupt controller a superset of Intel's 82C59 PIC. It also has four (x4) 16-bit programmable internal timers which its superset Intel's 82C54 PIT. It also has built-in DRAM refresh controller as well. It is available for US$149 and US$299 for 16 MHz and 20 MHz respectively in quantities of 100.Intel Corporation, "New Product Focus Components: The 32-Bit Computing Engine Full Speed Ahead", Solutions, May/June 1987, page 10 The Intel M82380 met under MIL-STD-883 Rev. C standard. This military device was tested which includes temperature cycling between -55 and 125 °C, hermeticity and extended burn-in. This military version can have transfer rate of 32 Mbytes per seconds at 16 MHz. This military version were available in 132-lead CPGA and 164-lead CQPK. This military version were available for US$520 100-unit of quantities for the PGA version.Intel Corporation, "Focus: Components: Militarized Peripherals Support M386 Microprocessor", Microcomputer Solutions, March/April 1989, page 12 82384 – Clock Generator. The available version for US$15 in quantities of 100.Intel Corporation, "New Product Focus Component: A 32-Bit Microprocessor With A Little Help From Some Friends", Special 32-Bit Issue Solutions, November/December 1985, page 13 82385 – High Performance 32-Bit Cache Controller. This chipset was introduced in February 1987. It was available for 20 MHz version.Intel Corporation, "NewsBit: 80386 Computing Engine Now Complete", Microcomputer Solutions, November/December 1987, page 1 There is 33 MHz version available for the 386DX processor.Lewnes, Ann, "The Intel386 Architecture Here to Stay", Intel Corporation, Microcomputer Solutions, July/August 1989, page 2 Paired with 33 MHz 386 CPU and 64-Kbyte memory subsystem, it performed up to 7.8 MIPS.Intel Corporation, "New Product Focus: Components: 386 Smart Cache Reduces Subsystem to One Chip", Microcomputer Solutions, September/October 1990, page 10 There is 82385SX version for the 386SX microprocessor. 82395DX – High Performance Smart Cache. This chipset contains internal 16-Kbye of SRAM and 1,000 cache tags. This controller supports up to 128-Kbytes of cache memory subsystem which it features four-way set associativity; a 16-byte line size; a four, double-word write buffer; and concurrent line-buffer caching. This also support write-buffer memory update protocol and maintains cache coherency during bus snooping. Paired with 33 MHz 386 CPU and the controller can perform up to 8.3 MIPS. This was available in 196-pin PQFP for US$90 and $109 for 25- and 33-MHZ version in quantities of 1000 respectively. There is Intel 82395SX version which it contains 8-Kbyte of cache memory for the 80386SX microprocessor family which it performs as much as 7% better than the 82385SX version. It was available for US$44 in quantities of 1000 units housed by 132-pin PQFP. The Intel 82396SX version contains 16-Kbyte of cache memory which were available in second quarter of 1991.Intel Corporation, "New Product Focus: Components: Two New Devices Extend Smart Cache Family", Microcomputer Solutions, March/April 1991, page 13

4xx chipsets

80486 chipsets Chipset Code name North Bridge sSpec number South Bridge Release date Processors FSB SMP Memory types Max. memory Max. cacheable Parity/ECC L2 Cache Type PCI support420TX Saturn CDC (82424TXIntel Corporation, "Focus: OEM: Industry's First PCI Chip Set Brings Workstation Performance To The Desktop", Microcomputer Solutions, March/April 1993, page 19), DPU (82423TXIntel Corporation, "Focus: OEM: Industry's First PCI Chip Set Brings Workstation Performance To The Desktop", Microcomputer Solutions, March/April 1993, page 19) SZ839 SZ868 SIO (System I/O) November 1992 5 V 486 Up to 33 MHz rowspan="3" FPM 128 MB rowspan="3" Async. 1.0420ZX Saturn II CDC (82424ZX), DPU (82423TX) SZ884 March 1994 5 V/3.3 V 486 160 MB 2.1420EX Aries PSC (82425EX) SZ897 (PSC) SZ898 (IB) IB (82426EX) Up to 50 MHz 128 MB 128 MB (/w 32KB Tag Ram & 512KB L2 CacheIntel 420EX Aries Datasheet, Page #112 2.0

Other 80486 chipsets

82495DX – Cache Controller. This support zero-wait-state with two-way set associative cache with several configurable parameters. This support MESI protocol and bus snooping. It is available for US$198.Chen, Allan, "The 50-MHz Intel486 Microprocessor", Intel Corporation, Microcomputer Solutions, September/October 1991, page 2 82490DX – 32-Kbyte Dual Port Intelligent Cache SRAM. Providing second level write-back cache with dual-ported buffers and registers. It is available for US$41.

Pentium chipsets While not an actual Intel chipset bug, the Mercury and Neptune chipsets could be found paired with RZ1000 and CMD640 IDE controllers with data corruption bugs. L2 caches are direct-mapped with SRAM tag RAM, write-back for 430FX, HX, VX, and TX. The ISA 82430 PCIset and EISA 82430 PCIset were available for USD $76 and USD $98 in 10,000-unit quantities respectfully.Intel Corporation, "Focus: PCI Chip Set Designed for Pentium Processor", Solutions, May/June 1993, page 20 Chipset Code name Part numbers sSpec number South Bridge Release date Processors FSB SMP Memory types Max. memory Max. cacheable Parity/ECC L2 Cache Type PCI support AGP support430LX MercuryIntel 430LX ("Mercury") , PC Guide, accessed August 20, 2007. 82434LX (PCMC)Intel Corporation, "Focus: PCI Chip Set Designed for Pentium Processor", Solutions, May/June 1993, page 202x 82433LX (LBX)Intel Corporation, "Focus: PCI Chip Set Designed for Pentium Processor", Solutions, May/June 1993, page 20 SZ914 (PCMC) SZ942 (LBX) SIO (ISA)PCEB/ESC (EISA) March 1993 P60/66 60/66 MHz FPM 192 MB 192 MB rowspan="2" Async. 2.0 rowspan="7" 430NX NeptuneIntel 430NX ("Neptune") , PC Guide, accessed August 20, 2007. 82434NX (PCMC)2x 82433NX (LBX) SZ919 (PCMC) SZ899 (LBX) SIO (ISA)SIO.A (DP ISA)PCEB/ESC (EISA) March 1994 P75+ 50/60/66 MHz 512 MB 512 MB430FX TritonIntel 430FX ("Triton") , PC Guide, accessed August 20, 2007.Summary of P5 chipsets , comp.sys.intel, September 1996. 82437FX/JX (TSC)2x 82438FX (TDP)SZ965 (A1) SZ968 (A1)

SZ969

SZ973 (A1)

SZ975 (A1)

SZ998 (A2)

SZ999 PIIX January 1995 rowspan="2" FPM/EDO 128 MB 64 MB rowspan="2" Async. / Pburst430MX Mobile Triton 82437MXSU036 (A1) SU037 (A1)

SU069 (B0) MPIIX October 1995430HX Triton IIIntel 430HX ("Triton II") , PC Guide, accessed August 20, 2007. 82439HX/JHX (TXC) SU087 (A1) SU102 (A2)

SU115 PIIX3 February 1996 512 MB 64 MB512 MB (w/ 11-bit tag RAM)System RAM Cacheability , PC Guide, accessed July 16, 2016. 2.1430VX Triton IIIntel 430VX ("Triton II", a.k.a. "Triton III") , PC Guide, accessed August 20, 2007.82437VX (TVX)2x 82438VX (TDX) SU085 (A1) SU116 (A2) 60/66 MHz rowspan="2" FPM/EDO/SDRAM 128 MB 64 MB rowspan="2" 430TXIntel 430TX , PC Guide, accessed August 20, 2007. 82439TX (MTXC) SL238 (A1) SL28T (A2)PIIX4 February 1997 256 MB

Pentium Pro/II/III chipsets Chipset Code Name Part numbers sSpec Number South Bridge Release date Processors FSB SMP Memory Parity/ECC PCI support AGP support Type Max. Bank450KX Mars 82451KX, 82452KX, 82453KX, 82454KX SU022 (A2) SU024 (A2)

SU025 (A1)