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List of Intel Xeon chipsets

This article needs to be updated. Please help update this article to reflect recent events or newly available information. (October 2023)

Around the time that the Pentium 4 processor was introduced, Intel's Xeon line diverged from its line of desktop processors, which at the time was using the Pentium branding.

The divergence was implemented by using different sockets; since then, the sockets for Xeon chips have tended to remain constant across several generations of implementation.

The chipsets contain a 'memory controller hub' and an 'I/O controller hub', which tend to be called 'north bridge' and 'south bridge' respectively. The memory controller hub connects to the processors, memory, high-speed I/O such as PCI Express, and to the I/O controller hub by a proprietary link. The I/O controller hub, on the other hand, connects to lower-speed I/O, such as SATA, PCI, USB, and Ethernet.

P6-based Xeon chipsets

Dual-processor P6-based Xeon chipsets

Intel's initial preferred chipset for Pentium III Xeon was the 840.

Product name	Codename	Processor FSB supported	Memory type supported	High-speed interfaces provided	Preferred IOCH
440GX AGPset	Marlinespike	100	One 72-bit-wide channel of SDRAM, with ECC; up to four DIMMs		PIIX4E
840	Carmel	100 or 133	Two channels RDRAM, two RIMMs per channel

Four-processor P6-based Xeon chipsets

The Pentium III Xeon bus protocol allowed four processors on the same bus, so the 440GX AGPset could be used in four-CPU systems; the limit of 2 GB of main memory remained. These support Slot 2.

There was also the 450NX PCIset, which consisted of several chips: a single 82451NX Memory and IO Bridge Controller roughly analogous to the North Bridge, up to two 82454NX PCI Expander Bridges which converted the protocol used by 451NX to two 32-bit PCI33 or one 64-bit PCI33 bus, along with up to two memory cards each equipped with one 82452NX RAS/CAS Generator chip and two 82453NX Data Path Multiplexer chips. It supported PIIX3 and PIIX4E south bridges, and EDO DRAM.

Eight-processor P6-based Xeon chipset

In August 1999, Intel began shipping the Profusion PCIset.^[1] The chipset was based on technology developed by the Corollary company, which Intel acquired.^[2] It supported up to 8 Pentium III Xeon processors on two busses and maintained cache coherency between them.^[3]^[4]^[5] Profusion supported up to 32 GB of memory. It saw some limited competition from the NEC Aqua II chipset.^[6] Another minor player in the eight-way space was Axil Computer's NX801,^[2] which was used in an 8-way (two buses) Pentium Pro design, commercialized by Data General as their AV-8600 computer.^[7]

NetBurst-based Xeon chipsets

Dual-processor NetBurst-based Xeon chipsets

E7500 corresponded to the first Northwood-based Pentium4 Xeons, E7501 is essentially identical but supports faster FSB and memory. The E7320, E7520 and E7525 chipsets correspond to Prescott-based Pentium4 Xeons, and differ mainly in their PCI Express support. These support Socket 604. The Intel 875P chipset was used in some two-socket motherboards for Xeons.^[8]^[9]^[10]^[11]

Product name	Codename	Processor FSB supported	Memory type supported	High-speed interfaces provided	Preferred IOCH
860^[12]	Colusa	400 MT/s	Two channels of ECC RDRAM at 800 or 600 MT/s, up to 3.2 GB/s	AGP 4× port and three hub interfaces for two 533 MB/s PCI buses and a 266 MB/s bus to ICH2	ICH2
E7205	Granite Bay	400 or 533 MT/s	Two channels of DDR at 100 MHz or 133 MHz	AGP 8× port, single 32-bit 33 MHz PCI bus, 266 MHz 8-bit hub interface for ICH4	ICH4
E7210^[13]	Canterwood-ES	400 MT/s, 533 MT/s or 800 MT/s	Two channels of unbuffered ECC and non-ECC DDR DIMMs (registered ECC is not supported) at 133 MHz, 166 MHz or 200 MHz (DDR-266/333/400)	66 MHz CSA interface for Gigabit LAN. MCH is connected to ICH via 66 MHz 8-bit (266 MT/s) Hub Interface v1.5. A 6300ESB ICH provides up to four 32-bit and/or 64-bit PCI-X at 33 or 66 MHz. Intel E7210 is server variant of 875P (Socket 478) without AGP, it can be used in dual Socket 604 configurations.^[14]	6300ESB
E7320^[15]	Lindenhurst VS	800 MT/s	Two channels of registered DDR-333 or DDR2-400 SDRAM	One ×8 PCI Express interface with max. theoretical bandwidth of 4 GB/s, which may be configured as two ×4 PCIe interfaces.^[a] A 6700PXH provides PCI-X 32-bit and/or 64-bit interfaces at 33 MHz, 66 MHz, 100 MHz, and 133 MHz.	6300ESB, or 82801ER (ICH5R)
E7500	Plumas	400 MT/s	Two channels of ECC DDR SDRAM at 100 MHz (3.2 GB/s peak)	Three ECC 1 GB/s (66 MHz ×8, 16-bit) 'Hub Interface' channels, which connect to 82870P2 chips to provide two 64-bit 66 MHz PCI or PCI-X buses each, plus one ECC 533 MB/s (66 MHz ×4) connector for ICH3-S	ICH3-S
E7501	Plumas 533	533 MT/s	Two channels of ECC DDR SDRAM at 133 MHz (4.2 GB/s peak)		ICH3-S
E7505	Placer^[16]	533 MT/s	Two channels of ECC DDR SDRAM at 133 MHz (4.2 GB/s peak)	AGP 8× port, three ECC 1 GB/s (66 MHz ×8, 16-bit) 'Hub Interface' channels, which connect to 82870P2 chips to provide two 64-bit 66 MHz PCI or PCI-X buses each, plus one ECC 533 MB/s (66 MHz ×4) connector for ICH4	ICH4
E7520^[17]	Lindenhurst	800 MT/s	Two channels of registered DDR-333 or DDR2-400 SDRAM	Three ×8 PCI Express interfaces each with max. theoretical bandwidth of 4 GB/s, which may be configured as two ×4 PCIe interfaces. A 6700PXH provides PCI-X 32-bit and/or 64-bit interfaces at 33 MHz, 66 MHz, 100 MHz, and 133 MHz.	6300ESB, or 82801ER (ICH5R)
E7525^[18]	Tumwater	800 MT/s	Two channels of registered DDR-333 or DDR2-400 SDRAM	One ×16 and one ×8 PCI Express interface. A 6700PXH can be attached.	6300ESB, or 82801ER (ICH5R)

Note that the 82870P2 chips of E7500, E7501 and E7505 were initially designed for the Intel 870 chipset for Itanium 2, and that the summary page of the E7320 datasheet incorrectly claims three PCI Express interfaces.

Quad-processor NetBurst-based Xeon chipsets

As Intel didn't have a 4P-capable chipset for NetBurst-based Xeons until 2005, for three years ServerWorks GC-HE served as the de facto standard MP chipset, even being used in Intel's own motherboards (SPSH4 and SRSH4).^[19]

Product name	Codename	Processor FSB supported	Memory type supported	High-speed interfaces provided	Preferred IOCH
E8500^[20]	Twin Castle	667 MT/s dual bus	DDR-266, DDR-333 or DDR2-400	three ×8 and one ×4 PCI Express interface	82801EB (ICH5), or 82801ER (ICH5R)
E8501^[21]	Twin Castle	667 and 800 MT/s dual bus	DDR-266, DDR-333 or DDR2-400	three ×8 and one ×4 PCI Express interface	82801EB (ICH5), or 82801ER (ICH5R)

Core-based Xeon chipsets

Single-processor Core-based Xeon chipsets

3000 and 3010 are an update on the E7230 chipset, codenamed Mukilteo, which has specifications very similar to the 3000 chipset.^[22] E7230 was preceded by E7221, which was Intel's first strictly single-socket server chipset.

Product name	Codename	Processor FSB supported	Memory type supported	High-speed interfaces provided	Preferred IOCH
3000	Mukilteo-2^[23]^[24]	533 or 800 or 1066 MT/s	Two channels of ECC DDR2-533 or DDR2-667	PCI Express ×8 port, single 32-bit 33 MHz PCI bus, DMI for ICH7	ICH7
3010	Mukilteo-2P	533 or 800 or 1066 MT/s	Two channels of ECC DDR2-533 or DDR2-667	PCI Express 1 ×16 or 2 ×8 ports, single 32-bit 33 MHz PCI bus, DMI for ICH7	ICH7
3200	Bigby-V	800 or 1066 or 1333 MT/s	Two channels of ECC DDR2-667 or DDR2-800	PCI Express ×8 port, single 32-bit 33 MHz PCI bus, DMI for ICH9	ICH9
3210	Bigby-P	800 or 1066 or 1333 MT/s	Two channels of ECC DDR2-667 or DDR2-800	PCI Express 1 ×16 or 2 ×8 ports, single 32-bit 33 MHz PCI bus, DMI for ICH9	ICH9

Dual-processor Core-based Xeon chipsets

These chipsets use a 'dual independent bus' design, in which each socket has its own connection to the chipset. These use the LGA 771 socket. The datasheets omit the 667 MT/s FSB support, so 5400 may support it too.

Product name	Codename	FSB speed (MT/s)	Snoop filter^[b]	Memory support	High-speed interfaces provided	Preferred IOCH
5000P	Blackford	667, 1066, 1333		Four channels of FB-DIMM at 533 or 667 MHz, up to 64 GB	Six PCIe ×4 ports, of which two are normally used for communication with IOCH, and a seventh ×4 port only for IOCH.	631xESB or 632xESB
5000Z				Two channels of FB-DIMM at 533 or 667 MHz, up to 16 GB	Four PCIe ×4 ports, of which two are normally used for communication with IOCH, and a fifth ×4 port only for IOCH.
5000V				Two channels of FB-DIMM at 533 or 667 MHz, up to 16 GB	Two PCIe ×4 ports which are normally used for communication with IOCH, and a third ×4 port only for IOCH.
5000X	Greencreek		A snoop filter comprising about 1 MB of SRAM for coverage of 16 MB of cache.	Four channels of FB-DIMM at 533 or 667 MHz, up to 64 GB	Six PCIe ×4 ports, of which two are normally used for communication with IOCH and the other four are combined into a ×16 port, and a seventh ×4 port only for IOCH.
5100	San Clemente			Two channels of registered ECC DDR2 533 or 667 MT/s, up to 48 GB	6 PCIe ×4 ports, plus one ×4 port reserved for IOCH	ICH9R
5400	Seaburg	1066, 1333, 1600	A more advanced^[25] snoop filter comprising about 1.6 MB of SRAM for coverage of 24 MB of cache.	Four channels of FB-DIMM at 533, 667 or 800 MHz, up to 128 GB	9 PCIe ×4 ports, plus one ×4 port reserved for IOCH	631xESB or 632xESB

Four-processor Core-based Xeon chipsets

This chipset uses four independent buses, and is used by the Tigerton and Dunnington processors.

Launch name	Codename	FSB speed	Snoop filter^[c]	Memory support	Fast I/O	IOCH
7300^[26]	Clarksboro	1066 MT/s	A very sophisticated snoop filter, comprising 4.5 MB of SRAM for coverage of 64 MB of cache.	Four channels of FB-DIMM at 533 or 667 MHz, up to 256 GB	7 PCIe ×4 ports, of which two are usually used to connect to the IOCH, plus an 8th ×4 port only for IOCH	631x or 632x

Nehalem-based Xeon chipsets

Single-processor Nehalem-based Xeon chipsets

The 3450 chipset is also compatible with an Intel Core i5 or Intel Core i3 processor.

Product name	Codename	DMI	Fast I/O	Other features
3400	Ibex Peak	1.0, 100 MT/s	PCI Express 6 ×1 ports, single 32-bit 33 MHz PCI bus, DMI for processor	8× USB 2.0, 4× SATA, Integrated LAN
3420	Ibex Peak	1.0, 100 MT/s	PCI Express 8 ×1 ports, single 32-bit 33 MHz PCI bus, DMI for processor	12× USB 2.0, 6× SATA, Integrated LAN
3450	Ibex Peak	1.0, 100 MT/s	PCI Express 8 ×1 ports, single 32-bit 33 MHz PCI bus, DMI for processor	14× USB 2.0, 6× SATA, Integrated LAN

Dual-processor Nehalem-based Xeon chipsets

The Nehalem-based Xeons for dual-socket systems, initially launched as the Xeon 55xx series, feature a very different system structure: the memory controllers are on the CPU, and the CPUs can communicate with one another as peers without going via the chipset. This means that the 5500 and 5520 (initial codename Tylersburg-EP) chipsets are essentially QPI to PCI Express interfaces; the 5520 is more intended for graphical workstations and the 5500 for servers that do not need vast amounts of PCI Express connectivity

Launch name	Codename	QPI ports	QPI speed	Fast I/O	IOCH	Other features
5500	Tylersburg-24S, Tylersburg-24D^[27]	1, 2	4.8, 5.86 or 6.4 GT/s	1 ×16 PCIe Gen 2, 2 ×4 PCIe Gen 1 to talk to southbridge	ICH10 (ICH9 also possible)	Integrated Management Engine with its own 100 Mbit/s Ethernet^[28]
5520	Tylersburg-36S, Tylersburg-36D	1, 2	4.8, 5.86 or 6.4 GT/s	2 ×16 PCIe Gen 2, 1 ×4 PCIe Gen 1 to talk to southbridge	ICH10 (ICH9 also possible)	Integrated Management Engine with its own 100 Mbit/s Ethernet^[28]

As well as the 5530

Four-processor Nehalem-based Xeon chipsets

Launch name	Codename	QPI ports	QPI speed	Fast I/O	IOCH	Other features
7500	Boxboro	2	6.4 GT/s	2 ×16 PCIe Gen 2, 1 ×4 PCIe Gen 1 to talk to southbridge	ICH10 (ICH9 also possible)	Integrated Management Engine with its own 100 Mbit Ethernet

Sandy Bridge-based Xeon chipsets

Single-processor Sandy Bridge-based Xeon chipsets

The Intel C200 series chipsets that support the Intel Xeon E3-1200 CPU family.^[29]^[30]

Product name	Codename	DMI	Fast I/O	Other features
C202	Cougar Point	2.0, 100 MT/s	PCI Express 8 × 1 ports, single 32-bit 33 MHz PCI bus, DMI for processor	12 × USB 2.0, 6 × SATA 1.5/3 Gbit/s, Integrated LAN
C204				12 × USB 2.0, 2 × SATA 1.5/3/6 Gbit/s + 4 × SATA 1.5/3 Gbit/s, Integrated LAN
C206				14 × USB 2.0, 2 × SATA 1.5/3/6 Gbit/s + 4 × SATA 1.5/3 Gbit/s, Integrated LAN, Integrated Graphics, Intel Anti-Theft Technology, Active Management Technology 7.0

Dual-processor Sandy Bridge-based Xeon chipsets

The Intel C600 series chipsets support the Intel Xeon E5-2600 CPU family. Common to all C600 variants are the following features:

DMI interface to CPU at 20 GT/s
8 PCIe 2.0 (5 GT/s) lanes, configurable by the board manufacturer as 8×1, 4×2, 2×4, or 1×8.
2 SATA ports supporting 6/3/1.5 gigabaud operation
4 SATA ports supporting 3/1.5 gigabaud operation
one PCI 2.3 32-bit 33 MHz bus interface
14 USB 2.0 ports
single-port Gigabit Ethernet controller
Active Management Technology 7.0 and Anti-Theft Technology
HD Audio controller

Some chipset variants have additional mass storage interfaces:

Product name	Codename	additional mass storage capabilities
C602J	Patsburg	none
C602		4× SATA 1.5/3 gigabaud ports
C604		4× SAS/SATA 1.5/3 gigabaud ports
C606		8× SAS/SATA 1.5/3 gigabaud ports optionally through dedicated PCIe 2.0 ×4 (5 GT/s) interface, 1 additional SMBus
C608		8× SAS/SATA 1.5/3 gigabaud ports optionally through dedicated PCIe 2.0 ×4 (5 GT/s) interface, 2 additional SMBus

Dual-processor Gladden/Sandy Bridge-EP/EN-based Xeon chipsets

The Intel Communications 8900 series chipsets that support the Gladden Intel Xeon E3-11xx^[31] or Sandy Bridge-EP/EN Intel Xeon E5-2xxx^[32] CPU families.

Product name	Codename	DMI	Fast I/O	Other features
DH8900	Cave Creek	2.0, 100 MT/s	PCI Express 2.0 ×16 + PCI Express 1.0 4 × 1 ports, DMI for processor	6 × USB 2.0, 6 × SATA 1.5/3 Gbit/s, 4 × Integrated LAN
DH8903			PCI Express 2.0 ×8 + PCI Express 1.0 4 × 1 ports, DMI for processor	6 × USB 2.0, 2 × SATA 1.5/3 Gbit/s, 4 × Integrated LAN, 5 Gbit/s QuickAssist
DH8910			PCI Express 2.0 ×4 + PCI Express 1.0 4 × 1 ports, DMI for processor	6 × USB 2.0, 2 × SATA 1.5/3 Gbit/s, 4 × Integrated LAN, 10 Gbit/s QuickAssist
DH8920			PCI Express 2.0 ×4 + PCI Express 1.0 4 × 1 ports, DMI for processor	6 × USB 2.0, 2 × SATA 1.5/3 Gbit/s, 4 × Integrated LAN, 20 Gbit/s QuickAssist

Ivy Bridge-based Xeon chipsets

Single-processor Ivy Bridge-based Xeon chipsets

The Intel C200 series chipsets that support the Intel Xeon E3-1200v2 CPU family.^[33]

Product name	Codename	DMI	Fast I/O	Other features
C216	Panther Point	2.0, 100 MT/s	PCI Express 2.0 8 × 1 ports, single 32-bit 33 MHz PCI bus, DMI for processor	4 × USB 3.0 + 14 × USB 2.0, 2 × SATA 1.5/3/6 Gbit/s + 4 × SATA 1.5/3 Gbit/s, Integrated LAN, Integrated Graphics, Intel Anti-Theft Technology, Active Management Technology 8.0

Haswell-based Xeon chipsets

Single-processor Haswell-based Xeon chipsets

The Intel C220 series chipsets support the Intel Xeon E3-1200v3 and Intel Xeon E3-1200v4 CPU families.^[34]

Product name	Codename	DMI	Fast I/O	Other features
C222	Lynx Point	2.3, 100 MT/s	Eight PCI Express 2.0 ×1 ports, DMI for processor	10 × USB 2.0/3.0, 2 × SATA 1.5/3/6 Gbit/s + 4 × SATA 1.5/3 Gbit/s, Integrated LAN, Integrated IDE, Rapid Storage Technology enterprise
C224				12 × USB 2.0/3.0, 4 × SATA 1.5/3/6 Gbit/s + 2 × SATA 1.5/3 Gbit/s, Integrated LAN, Integrated IDE, Rapid Storage Technology enterprise
C226				8 × USB 2.0, 6 USB 3.0, 6 × SATA 1.5/3/6 Gbit/s, Integrated LAN, Integrated Graphics, Rapid Storage Technology enterprise, Active Management Technology 9.0, Identity Protection Technology, VGA, Wireless Display

Multi processor Haswell/Broadwell-based Xeon chipsets

The Intel C610 series of chipsets supports the Intel Xeon E5-x600v3 and Intel Xeon E5-x600v4 CPU families.^[35]^[36]

Product name	Codename	Lithography	DMI	Fast I/O	Other features	TDP
C612	Wellsburg	32nm	5 GT/s	8 PCI Express 2.0 lanes configurable as ×1, x2, x4	14 × USB 2.0/3.0, 10 × SATA 6 Gbit/s, Integrated 1 Gbps LAN, Rapid Storage Technology enterprise (RSTe 4.0)	7W

Skylake-based Xeon chipsets

Single-processor Skylake-based Xeon chipsets

The Intel C230 series chipsets support the Intel Xeon E3-1200v5 CPU family.

Both, the C232 and the C236 support the LGA 1151 socket.

Product name	Codename	DMI	Fast I/O	Other features
C232	Sunrise Point	3.0, 100 MT/s	Max. 8 lanes PCIe 3.0 at ×4, ×2, ×1 configuration, DMI for processor	6× USB 3.0, 6× USB 2.0, 6× SATA 6 Gbit/s, M.2 & SATA Express support, integrated LAN, Rapid Storage Technology enterprise
C236	Sunrise Point	3.0, 100 MT/s	Max. 20 lanes PCIe 3.0 at ×4, ×2, ×1 configuration, DMI for processor	10× USB 3.0, 4× USB 2.0, 8× SATA 6 Gbit/s, M.2 & SATA Express support, integrated LAN, Rapid Storage Technology enterprise, 3× displays

Multi-processor Skylake-based Xeon chipsets

Kaby Lake-based Xeon chipsets

Single-processor Kaby Lake-based Xeon chipsets

Coffee Lake-based Xeon chipsets

The Intel C246 series chipsets support the Intel Xeon E-2100 series of CPUs.^[37]

Product name	Codename	DMI	Fast I/O	Other features
C242	?	3.0 ×4	Max. 10 lanes PCIe 3.0	6× USB 3.1 (up to 2× USB 3.1 Gen 2, up to 6× USB 3.1 Gen 1), 6× USB 2.0, SATA, Ethernet, Wifi
C246	?	3.0 ×4	Max. 24 lanes PCIe 3.0	10× USB 3.1 (up to 6× USB 3.1 Gen 2, up to 10× USB 3.1 Gen 1), 4× USB 2.0, SATA, Ethernet, Wifi

Cascade Lake-based Xeon chipsets

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Comet Lake-based Xeon chipsets