CPU socket

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Socket AM5, a land grid array socket
Socket AM2+, a pin grid array socket

In computer hardware, a CPU socket or CPU slot contains one or more mechanical components providing mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows for placing and replacing the central processing unit (CPU) without soldering.

Common sockets have retention clips that apply a constant force, which must be overcome when a device is inserted. For chips with many pins, zero insertion force (ZIF) sockets are preferred. Common sockets include pin grid array (PGA) or land grid array (LGA). These designs apply a compression force once either a handle (PGA type) or a surface plate (LGA type) is put into place. This provides superior mechanical retention while avoiding the risk of bending pins when inserting the chip into the socket.

CPU sockets are used on the motherboard in desktop and server computers. Because they allow easy swapping of components, they are also used for prototyping new circuits. Laptops typically use surface-mount CPUs, which take up less space on the motherboard than a socketed part.

As the pin density increases in modern sockets, increasing demands are placed on the printed circuit board fabrication technique, which permits the large number of signals to be successfully routed to nearby components. Likewise, within the chip carrier, the wire bonding technology also becomes more demanding with increasing pin counts and pin densities. Each socket technology will have specific reflow soldering requirements. As CPU and memory frequencies increase, above 30 MHz or thereabouts, electrical signalling increasingly shifts to differential signaling over parallel buses, bringing a new set of signal integrity challenges. The evolution of the CPU socket amounts to a coevolution of all these technologies in tandem.

Modern CPU sockets are almost always designed in conjunction with a heat sink mounting system, or, in lower power devices, other thermal considerations.

Function

[edit]

A CPU socket is made of plastic, and often comes with a lever or latch, and with metal contacts for each of the pins or lands on the CPU. Many packages are keyed to ensure the proper insertion of the CPU. CPUs with a PGA (pin grid array) package are inserted into the socket and, if included, the latch is closed. CPUs with an LGA (land grid array) package are inserted into the socket, the latch plate is flipped into position atop the CPU, and the lever is lowered and locked into place, pressing the CPU's contacts firmly against the socket's lands and ensuring a good connection, as well as increased mechanical stability.

List

[edit]

80x86

[edit]

Table legend:

  Intel only
  AMD only
Socket
name		Year of introductionCPU families supportedComputer typePackagePin countPin pitch
(mm)		Bus clock &
transfers		Notes
DIP1970sIntel 8086
Intel 8088		DIP402.545/10 MHz
PLCC1982Intel 80186
Intel 80286
Intel 80386		PLCC68 to 1321.276–40 MHz1982 for this use
PGA681982Intel 80286PGA68
PGA1321985Intel 80386PGA132
PGA1681989Intel 80486
AMD 486
Cyrix 486		PGA1682.5416–50 MHzSometimes referred to as Socket 0 or Socket 486
Socket 11989Intel 80486
AMD 486
AMD 5x86
Cyrix 486
Cyrix 5x86		PGA1692.5416–50 MHz
Socket 21990sIntel 80486
Intel Pentium OverDrive (P24T)
Intel DX4
AMD 486
AMD 5x86
Cyrix 486
Cyrix 5x86		PGA2382.5416–50 MHz
Socket 31991Intel 80486
Intel Pentium OverDrive (P24T)
Intel DX4
AMD 486
AMD 5x86
Cyrix 486
Cyrix 5x86
IBM Blue Lightning		PGA2372.54 16–50 MHz[a]
Socket 41993Intel PentiumPGA273?60–100 MHz
Socket 51994Intel Pentium
AMD K5
Cyrix 6x86
IDT WinChip C6
IDT WinChip 2		PGA320?50–100 MHz
Socket 6?Intel 80486PGA235??Designed but not used
Socket 463/
Socket NexGen		1994NexGen Nx586PGA463?37.5–66 MHz
Socket 71995Intel Pentium
Intel Pentium MMX
AMD K6		PGA321?50–66 MHzIt is possible to use Socket 7 processors in a Socket 5. An adapter is required, or if one is careful, a socket 7 can be pulled off its pins and put onto a socket 5 board, allowing the use of socket 7 processors.
Socket 81995Intel Pentium ProPGA387?60–66 MHz
Slot 11997Intel Pentium II
Intel Pentium III		DesktopSlot242?66–133 MHzCeleron (Covington, Mendocino)
Pentium II (Klamath, Deschutes)
Pentium III (Katmai)- all versions
Pentium III (coppermine)
Super Socket 71998AMD K6-2
AMD K6-III
Rise mP6
Cyrix MII		PGA321?66–100 MHzBackward compatible with Socket 5 and Socket 7 processors.
Slot 21998Intel Pentium II Xeon
Intel Pentium III Xeon		ServerSlot330?100–133 MHz
Socket 6151999Intel Mobile Pentium II
Intel Mobile Celeron		NotebookPGA615?66 MHz
Slot A1999AMD AthlonDesktopSlot242?100 MHz
Socket 3701999Intel Pentium III
Intel Celeron
VIA Cyrix III
VIA C3		DesktopPGA3701.27[1]66–133 MHz
Socket A/
Socket 462		2000AMD Athlon
AMD Duron
AMD Athlon XP
AMD Athlon XP-M
AMD Athlon MP
AMD Sempron		DesktopPGA462?100–200 MHz
400 MT/s[b]
Socket 4232000Intel Pentium 4DesktopPGA4231[2]100 MHz
400 MT/s		Willamette core only.
Can accept some of Socket 478 CPU with an adapter
Socket 4952000Intel Celeron
Intel Pentium III		NotebookPGA4951.27[3]66–133 MHz
Socket 6032001Intel XeonServerPGA6031.27[4]100–133 MHz
400–533 MT/s
Socket 478/
Socket N		2001Intel Pentium 4
Intel Celeron
Intel Pentium 4 EE
Intel Pentium 4 M		DesktopPGA4781.27[5]100–200 MHz
400–800 MT/s
Socket 5632002AMD Athlon XP-MNotebookPGA563?333 MHz
Socket 6042002Intel XeonServerPGA6041.27[4]100–266 MHz
400–1066 MT/s
Socket 7542003AMD Athlon 64
AMD Sempron
AMD Turion 64		DesktopPGA7541.27[6]200–800 MHz
Socket 9402003AMD Opteron
AMD Athlon 64 FX		Desktop
Server		PGA9401.27[7]200–1000 MHz
Socket 4792003Intel Pentium M
Intel Celeron M		NotebookPGA479[8]?100–133 MHz
400–533 MT/s
Socket 9392004AMD Athlon 64
AMD Athlon 64 FX
AMD Athlon 64 X2
AMD Opteron		DesktopPGA9391.27[9]200–1000 MHzSupport of Athlon 64 FX to 1 GHz
Support of Opteron limited to 100-series only
LGA 775/
Socket T		2004Intel Pentium 4
Intel Pentium D
Intel Celeron
Intel Celeron D
Intel Pentium XE
Intel Core 2 Duo
Intel Core 2 Quad
Intel Xeon		DesktopLGA7751.09 x 1.17[10]1600 MHzCan accept LGA 771 CPU with slight modification and use of an adapter
Socket M2006Intel Core Solo
Intel Core Duo
Intel Dual-Core Xeon
Intel Core 2 Duo		NotebookPGA478?133–166 MHz
533–667 MT/s		Replaces Socket 479
LGA 771/
Socket J		2006Intel XeonServerLGA7711.09 x 1.17[11]1600 MHzSee LGA 775/Socket T above
Socket S12006AMD Turion 64 X2NotebookPGA6381.27[12]200–800 MHz
Socket AM22006AMD Athlon 64
AMD Athlon 64 X2		DesktopPGA9401.27[9]200–1000 MHzReplaces Socket 754 and Socket 939
Socket F/
Socket L (Socket 1207FX)		2006AMD Athlon 64 FX
AMD Opteron
(Socket L only support Athlon 64 FX)		Desktop
Server		LGA12071.1[13]Socket L: 1000 MHz in Single CPU mode,
2000 MHz in Dual CPU mode		Replaces Socket 940
Socket L was intended for enthusiasts who wanted server power in a desktop PC. It is just a re-branded Socket F that doesn't need special RAM, and may have only been used in the Asus L1N64-SLI WS Motherboard.
Socket AM2+2007AMD Athlon 64
AMD Athlon X2
AMD Phenom
AMD Phenom II		DesktopPGA9401.27[9]200–2600 MHzSeparated power planes
Replaces Socket AM2
AM2+ Pkg. CPUs can work in Socket AM2
AM2 Pkg. CPUs can work in Socket AM2+
Socket P2007Intel Core 2NotebookPGA478?133–266 MHz
533–1066 MT/s		Replaces Socket M
LGA 1366/
Socket B		2008Intel Core i7 (900 series)
Intel Xeon (35xx, 36xx, 55xx, 56xx series)		Desktop
Server		LGA1366?4.8–6.4 GT/sReplaces Socket J (LGA 771) in the entry level.
Socket AM32009AMD Phenom II
AMD Athlon II
AMD Sempron
AMD Opteron (1300 series)		DesktopPGA941[14] or 940[15]1.27[9]200–3200 MHzSeparated power planes
Replaces Socket AM2+
AM3 Pkg. CPUs can work in Socket AM2/AM2+
Sempron 140 only
rPGA 988A/
Socket G1		2009Intel Clarksfield
Intel Arrandale		NotebookrPGA98812.5 GT/sReplaces Socket P
LGA 1156/
Socket H		2009Intel Nehalem (1st gen)
Intel Westmere		DesktopLGA1156?2.5 GT/sDMI bus is a (perhaps modified) PCIe x4 v1.1 interface
Socket G342010AMD Opteron (6000 series)ServerLGA1974?200–3200 MHzReplaces Socket F
Socket C322010AMD Opteron (4000 series)ServerLGA1207?200–3200 MHzReplaces Socket F, Socket AM3
LGA 1567/
Socket LS		2010Intel Xeon 6500/7500-seriesServerLGA1567?4.8–6.4 GT/s
LGA 1155/
Socket H2		2011/Q1
2011.01.09		Intel Sandy Bridge (2nd gen)
Intel Ivy Bridge (3rd gen)		DesktopLGA1155?5.7 GT/sused for Intel 2nd generation, 3rd generation processors.

Sandy Bridge supports 20 PCIe 2.0 lanes.
Ivy Bridge supports 40 PCIe 3.0 lanes.
Intel Mainstream Socket.

LGA 2011/
Socket R		2011/Q3
2011.11.14		Intel Core i7 3xxx Sandy Bridge-E
Intel Core i7 4xxx Ivy Bridge-E
Intel Xeon E5 2xxx/4xxx (Sandy Bridge EP) (2/4S)
Intel Xeon E5-2xxx/4xxx v2 (Ivy Bridge EP) (2/4S)		Desktop
Server		LGA2011?4.8–6.4 GT/sSandy Bridge-E/EP and Ivy Bridge-E/EP both support 40 PCIe 3.0 lanes.
Using the Xeon focused 2011 socket gives also 4 memory Channels.
rPGA 988B/
Socket G2		2011Intel Core i7
Intel Core i5
Intel Core i3
(2000, 3000 series)		NotebookrPGA98812.5 GT/s, 4.8 GT/s
Socket FM12011AMD Llano ProcessorsDesktopPGA9051.275.2 GT/sused for 1st generation APUs
Socket FS12011AMD Llano ProcessorsNotebookPGA7221.273.2 GT/sused for 1st generation Mobile APUs
Socket AM3+2011AMD FX Vishera[broken anchor]
AMD FX Zambezi
AMD Phenom II
AMD Athlon II
AMD Sempron		DesktopPGA942 (CPU 71pin)1.273.2 GT/s
LGA 1356/
Socket B2		2012Intel Xeon (E5 1400 & 2400 series)ServerLGA1356?3.2–4.0 GT/s
Socket FM22012AMD Trinity ProcessorsDesktopPGA9041.27?used for 2nd generation APUs
LGA 1150/
Socket H3		2013Intel Haswell (4th gen)
Intel Haswell Refresh
Intel Broadwell (5th gen)		DesktopLGA1150??used for Intel's 4th generation (Haswell/Haswell Refresh), the handful of intel 5th generation processors
rPGA 946B/947/
Socket G3		2013Intel HaswellNotebookrPGA94615.0 GT/s
Socket FM2+2014AMD Kaveri
AMD Godavari		DesktopPGA9061.27?Compatible with AMD APUs such as "Richland" and "Trinity"
Socket AM12014AMD Athlon
AMD Sempron		DesktopPGA7211.27?Compatible with AMD APUs such as "Kabini"
LGA 2011-v32014
(August and September)		Haswell-E
Haswell-EP		DesktopLGA2011?Up to 68 GB/sec.
Depends on DDR4 speed and channel count.		Up to 40 PCIe 3.0 lanes.
Up to 4 memory Channels.
LGA 1151/
Socket H4		2015Intel Skylake (6th gen)
Intel Kaby Lake (7th gen)
Intel Coffee Lake (8th gen)
Intel Coffee Lake Refresh (9th gen)		DesktopLGA1151?5 GT/s - 8 GT/sused for Intel's 6th generation (Skylake), 7th generation (Kaby Lake), 8th generation (Coffee Lake) processors, and 9th generation (Coffee Lake Refresh) processors
LGA 36472016Intel Xeon Phi
Intel Skylake-SP		ServerLGA3647??used for Intel's Xeon Phi x200 and Xeon Scalable processors
Socket AM42016

AMD Athlon Bristol Ridge
AMD Athlon Raven Ridge 14nm
AMD Athlon Picasso 12nm
AMD Ryzen 1000 series
AMD Ryzen 2000 series
AMD Ryzen 3000 series
AMD Ryzen 4000 series
AMD Ryzen 5000 series

DesktopPGA13311Depends on DDR4 speedcompatible with AMD Ryzen 9, Ryzen 7, Ryzen 5 & Ryzen 3 Zen based processors
Socket SP32017AMD Epyc Naples
AMD Epyc Rome
AMD Epyc Milan		ServerLGA4094?Depends on DDR4 speedcompatible with AMD Epyc processors
Socket TR4/
Socket SP3r2		2017AMD Ryzen Threadripper (1000 series)
AMD Ryzen Threadripper (2000 series)		DesktopLGA4094?Depends on DDR4 speedcompatible with AMD Ryzen Threadripper processors
LGA 2066/
Socket R4		2017Intel Skylake-X
Intel Kaby Lake-X
Intel Cascade Lake-X		Desktop
Server		LGA2066??Used for Intel's 7th generation (Skylake-X & Kaby Lake-X & Cascade Lake-X) series of Core-X processors
Socket sTRX4/
Socket SP3r3		2019AMD Ryzen Threadripper (3000 series)DesktopLGA4094?Depends on DDR4 speedcompatible with 3rd generation AMD Ryzen Threadripper processors
LGA 41892020Intel Cooper Lake
Intel Ice Lake-SP		Desktop
Server		LGA4189[16]0.99[16]
LGA 12002020Intel Comet Lake (10th gen)
Intel Rocket Lake (11th gen)		DesktopLGA1200
LGA 17002021Intel Alder Lake (12th gen)
Intel Raptor Lake (13th gen)

Intel Raptor Lake (14th gen)

DesktopLGA1700
Socket sWRX82022AMD Ryzen Threadripper Pro (5000 series)DesktopLGA4094
Socket AM52022AMD Ryzen 7000 series
AMD Ryzen 8000 series (APU)
AMD Ryzen 9000 series		DesktopLGA1718Zen 4 Ryzen CPUs
Socket SP52022AMD Epyc GenoaServerLGA6096Used for Epyc Genoa and Milan
LGA 46772022Intel Sapphire Rapids
intel Emerald Rapids		ServerLGA4677
Socket SP62023AMD Epyc SienaServerLGA4844
Socket sTR52023AMD Ryzen Threadripper
AMD Ryzen Threadripper Pro (7000 series)		DesktopLGA4844
LGA 18512024Intel Meteor Lake-PS (Core Ultra Series 1)
Intel Arrow Lake (Core Ultra 200S Series)
TBA		DesktopLGA1851
LGA 47102023Intel Granite RapidsServerLGA4710
LGA 75292024Intel Sierra ForestServerLGA7529
Socket
name		Year of introductionCPU families supportedComputer typePackagePin countPin pitch
(mm)		Bus clock &
transfers		Notes
  1. ^ Some late model Socket 3 motherboards unofficially supported FSB speeds up to 66MHz
  2. ^ This is a double data rate bus. FSB in the later models.

Other ISAs

[edit]
Socket
name		Year of introductionCPU families supportedComputer typePackagePin countPin pitch
(mm)		Bus clock &
transfers		Notes
Daughter Card1995PowerPC 601+DesktopSlot146?40-60 Hz
Socket 288?PowerPC 603+DesktopPGA288?40-60 Hz
Socket 4311995Alpha 21064/21064ADesktopPGA431?12.5–66.67 MHz
Socket 4991997Alpha 21164/21164ADesktopPGA499?15–100 MHz
Socket 5871998Alpha 21264DesktopPGA587?12.5–133 MHz
Slot B1999Alpha 21264/21264ADesktopSlot587?100 MHz[17]
PAC4182001Intel ItaniumServerPGA418?133 MHz
PAC6112002Intel Itanium 2
HP PA-8800, PA-8900		ServerPGA611?200 MHz
LGA 12482010Intel Itanium 9300-series and upServerLGA1248?4.8-6.4 GT/s
Socket
name		Year of introductionCPU families supportedComputer typePackagePin countPin pitch
(mm)		Bus clock &
transfers		Notes

Slotkets

[edit]

Slotkets are special adapters for using socket processors in bus-compatible slot motherboards.

See also

[edit]

References

[edit]
  1. ^ "Intel 815 Chipset Family" (PDF). Intel. Archived from the original (PDF) on December 28, 2009. Retrieved May 4, 2009.
  2. ^ "423 Pin Socket (PGA423) Design Guidelines" (PDF). Intel. Archived (PDF) from the original on December 29, 2009. Retrieved May 3, 2009.
  3. ^ "495-Pin and 615-pin micro-PGA ZIF Socket Design Specification Application Note" (PDF). Intel. Archived from the original (PDF) on February 2, 2012. Retrieved May 3, 2009.
  4. ^ a b "mPGA 604 Socket Mechanical Design Guide" (PDF). Intel. Archived from the original (PDF) on June 17, 2009. Retrieved May 3, 2009.
  5. ^ "Intel Pentium 4 Processor 478-Pin Socket (mPGA478) Design Guidelines" (PDF). Intel. Retrieved May 3, 2009.
  6. ^ "AMD Sempron Processor Product Data Sheet" (PDF). AMD. Archived from the original (PDF) on April 19, 2009. Retrieved May 3, 2009.
  7. ^ "AMD Opteron Processor Product Data Sheet" (PDF). AMD. Archived from the original (PDF) on January 17, 2009. Retrieved May 3, 2009.
  8. ^ CPU only has 478 pins, but the socket has 479.
  9. ^ a b c d "AMD Opteron Processor Product Data Sheet" (PDF). AMD. Archived from the original (PDF) on January 17, 2009. Retrieved May 3, 2009.
  10. ^ "LGA 775 Socket Mechanical Design Guide" (PDF). Intel. Retrieved May 4, 2009.
  11. ^ "LGA771 Socket Mechanical Design Guide" (PDF). Intel. Archived from the original (PDF) on August 24, 2009. Retrieved May 3, 2009.
  12. ^ "Low-Profile Socket S1 Design Specification" (PDF). AMD. Archived from the original (PDF) on December 3, 2008. Retrieved May 3, 2009.
  13. ^ "Thermal Design Guide for Socket F (1207) Processors" (PDF). AMD. Archived from the original (PDF) on December 5, 2008. Retrieved May 6, 2009.
  14. ^ CPU only has 938 pins, but the socket has 941.
  15. ^ AMD Documentation "Socket AM3 design Specification" (PDF). AMD. Archived from the original (PDF) on January 21, 2012. Retrieved January 5, 2012.
  16. ^ a b "LGA 4189 Socket and Hardware" (PDF).
  17. ^ Hachman, Mark (February 2, 1999). "Alpha camp moves to "Slot B" connector to push further into workstations". EE Times. Retrieved November 10, 2022.
[edit]
Retrieved from "https://en.wikipedia.org/w/index.php?title=CPU_socket&oldid=1324332772"
    Socket AM5, a land grid array socket
    Socket AM2+, a pin grid array socket

    In computer hardware, a CPU socket or CPU slot contains one or more mechanical components providing mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows for placing and replacing the central processing unit (CPU) without soldering.

    Common sockets have retention clips that apply a constant force, which must be overcome when a device is inserted. For chips with many pins, zero insertion force (ZIF) sockets are preferred. Common sockets include pin grid array (PGA) or land grid array (LGA). These designs apply a compression force once either a handle (PGA type) or a surface plate (LGA type) is put into place. This provides superior mechanical retention while avoiding the risk of bending pins when inserting the chip into the socket.

    CPU sockets are used on the motherboard in desktop and server computers. Because they allow easy swapping of components, they are also used for prototyping new circuits. Laptops typically use surface-mount CPUs, which take up less space on the motherboard than a socketed part.

    As the pin density increases in modern sockets, increasing demands are placed on the printed circuit board fabrication technique, which permits the large number of signals to be successfully routed to nearby components. Likewise, within the chip carrier, the wire bonding technology also becomes more demanding with increasing pin counts and pin densities. Each socket technology will have specific reflow soldering requirements. As CPU and memory frequencies increase, above 30 MHz or thereabouts, electrical signalling increasingly shifts to differential signaling over parallel buses, bringing a new set of signal integrity challenges. The evolution of the CPU socket amounts to a coevolution of all these technologies in tandem.

    Modern CPU sockets are almost always designed in conjunction with a heat sink mounting system, or, in lower power devices, other thermal considerations.

    Function

    A CPU socket is made of plastic, and often comes with a lever or latch, and with metal contacts for each of the pins or lands on the CPU. Many packages are keyed to ensure the proper insertion of the CPU. CPUs with a PGA (pin grid array) package are inserted into the socket and, if included, the latch is closed. CPUs with an LGA (land grid array) package are inserted into the socket, the latch plate is flipped into position atop the CPU, and the lever is lowered and locked into place, pressing the CPU's contacts firmly against the socket's lands and ensuring a good connection, as well as increased mechanical stability.

    List

    80x86

    Table legend:

      Intel only
      AMD only
    Socket
    name    		Year of introductionCPU families supportedComputer typePackagePin countPin pitch
    (mm)    		Bus clock &
    transfers    		Notes
    DIP1970sIntel 8086
    Intel 8088    		DIP402.545/10 MHz
    PLCC1982Intel 80186
    Intel 80286
    Intel 80386    		PLCC68 to 1321.276–40 MHz1982 for this use
    PGA681982Intel 80286PGA68
    PGA1321985Intel 80386PGA132
    PGA1681989Intel 80486
    AMD 486
    Cyrix 486    		PGA1682.5416–50 MHzSometimes referred to as Socket 0 or Socket 486
    Socket 11989Intel 80486
    AMD 486
    AMD 5x86
    Cyrix 486
    Cyrix 5x86    		PGA1692.5416–50 MHz
    Socket 21990sIntel 80486
    Intel Pentium OverDrive (P24T)
    Intel DX4
    AMD 486
    AMD 5x86
    Cyrix 486
    Cyrix 5x86    		PGA2382.5416–50 MHz
    Socket 31991Intel 80486
    Intel Pentium OverDrive (P24T)
    Intel DX4
    AMD 486
    AMD 5x86
    Cyrix 486
    Cyrix 5x86
    IBM Blue Lightning    		PGA2372.54 16–50 MHz[a]
    Socket 41993Intel PentiumPGA273?60–100 MHz
    Socket 51994Intel Pentium
    AMD K5
    Cyrix 6x86
    IDT WinChip C6
    IDT WinChip 2    		PGA320?50–100 MHz
    Socket 6?Intel 80486PGA235??Designed but not used
    Socket 463/
    Socket NexGen    		1994NexGen Nx586PGA463?37.5–66 MHz
    Socket 71995Intel Pentium
    Intel Pentium MMX
    AMD K6    		PGA321?50–66 MHzIt is possible to use Socket 7 processors in a Socket 5. An adapter is required, or if one is careful, a socket 7 can be pulled off its pins and put onto a socket 5 board, allowing the use of socket 7 processors.
    Socket 81995Intel Pentium ProPGA387?60–66 MHz
    Slot 11997Intel Pentium II
    Intel Pentium III    		DesktopSlot242?66–133 MHzCeleron (Covington, Mendocino)
    Pentium II (Klamath, Deschutes)
    Pentium III (Katmai)- all versions
    Pentium III (coppermine)
    Super Socket 71998AMD K6-2
    AMD K6-III
    Rise mP6
    Cyrix MII    		PGA321?66–100 MHzBackward compatible with Socket 5 and Socket 7 processors.
    Slot 21998Intel Pentium II Xeon
    Intel Pentium III Xeon    		ServerSlot330?100–133 MHz
    Socket 6151999Intel Mobile Pentium II
    Intel Mobile Celeron    		NotebookPGA615?66 MHz
    Slot A1999AMD AthlonDesktopSlot242?100 MHz
    Socket 3701999Intel Pentium III
    Intel Celeron
    VIA Cyrix III
    VIA C3    		DesktopPGA3701.27[1]66–133 MHz
    Socket A/
    Socket 462    		2000AMD Athlon
    AMD Duron
    AMD Athlon XP
    AMD Athlon XP-M
    AMD Athlon MP
    AMD Sempron    		DesktopPGA462?100–200 MHz
    400 MT/s[b]
    Socket 4232000Intel Pentium 4DesktopPGA4231[2]100 MHz
    400 MT/s    		Willamette core only.
    Can accept some of Socket 478 CPU with an adapter
    Socket 4952000Intel Celeron
    Intel Pentium III    		NotebookPGA4951.27[3]66–133 MHz
    Socket 6032001Intel XeonServerPGA6031.27[4]100–133 MHz
    400–533 MT/s
    Socket 478/
    Socket N    		2001Intel Pentium 4
    Intel Celeron
    Intel Pentium 4 EE
    Intel Pentium 4 M    		DesktopPGA4781.27[5]100–200 MHz
    400–800 MT/s
    Socket 5632002AMD Athlon XP-MNotebookPGA563?333 MHz
    Socket 6042002Intel XeonServerPGA6041.27[4]100–266 MHz
    400–1066 MT/s
    Socket 7542003AMD Athlon 64
    AMD Sempron
    AMD Turion 64    		DesktopPGA7541.27[6]200–800 MHz
    Socket 9402003AMD Opteron
    AMD Athlon 64 FX    		Desktop
    Server    		PGA9401.27[7]200–1000 MHz
    Socket 4792003Intel Pentium M
    Intel Celeron M    		NotebookPGA479[8]?100–133 MHz
    400–533 MT/s
    Socket 9392004AMD Athlon 64
    AMD Athlon 64 FX
    AMD Athlon 64 X2
    AMD Opteron    		DesktopPGA9391.27[9]200–1000 MHzSupport of Athlon 64 FX to 1 GHz
    Support of Opteron limited to 100-series only
    LGA 775/
    Socket T    		2004Intel Pentium 4
    Intel Pentium D
    Intel Celeron
    Intel Celeron D
    Intel Pentium XE
    Intel Core 2 Duo
    Intel Core 2 Quad
    Intel Xeon    		DesktopLGA7751.09 x 1.17[10]1600 MHzCan accept LGA 771 CPU with slight modification and use of an adapter
    Socket M2006Intel Core Solo
    Intel Core Duo
    Intel Dual-Core Xeon
    Intel Core 2 Duo    		NotebookPGA478?133–166 MHz
    533–667 MT/s    		Replaces Socket 479
    LGA 771/
    Socket J    		2006Intel XeonServerLGA7711.09 x 1.17[11]1600 MHzSee LGA 775/Socket T above
    Socket S12006AMD Turion 64 X2NotebookPGA6381.27[12]200–800 MHz
    Socket AM22006AMD Athlon 64
    AMD Athlon 64 X2    		DesktopPGA9401.27[9]200–1000 MHzReplaces Socket 754 and Socket 939
    Socket F/
    Socket L (Socket 1207FX)    		2006AMD Athlon 64 FX
    AMD Opteron
    (Socket L only support Athlon 64 FX)    		Desktop
    Server    		LGA12071.1[13]Socket L: 1000 MHz in Single CPU mode,
    2000 MHz in Dual CPU mode    		Replaces Socket 940
    Socket L was intended for enthusiasts who wanted server power in a desktop PC. It is just a re-branded Socket F that doesn't need special RAM, and may have only been used in the Asus L1N64-SLI WS Motherboard.
    Socket AM2+2007AMD Athlon 64
    AMD Athlon X2
    AMD Phenom
    AMD Phenom II    		DesktopPGA9401.27[9]200–2600 MHzSeparated power planes
    Replaces Socket AM2
    AM2+ Pkg. CPUs can work in Socket AM2
    AM2 Pkg. CPUs can work in Socket AM2+
    Socket P2007Intel Core 2NotebookPGA478?133–266 MHz
    533–1066 MT/s    		Replaces Socket M
    LGA 1366/
    Socket B    		2008Intel Core i7 (900 series)
    Intel Xeon (35xx, 36xx, 55xx, 56xx series)    		Desktop
    Server    		LGA1366?4.8–6.4 GT/sReplaces Socket J (LGA 771) in the entry level.
    Socket AM32009AMD Phenom II
    AMD Athlon II
    AMD Sempron
    AMD Opteron (1300 series)    		DesktopPGA941[14] or 940[15]1.27[9]200–3200 MHzSeparated power planes
    Replaces Socket AM2+
    AM3 Pkg. CPUs can work in Socket AM2/AM2+
    Sempron 140 only
    rPGA 988A/
    Socket G1    		2009Intel Clarksfield
    Intel Arrandale    		NotebookrPGA98812.5 GT/sReplaces Socket P
    LGA 1156/
    Socket H    		2009Intel Nehalem (1st gen)
    Intel Westmere    		DesktopLGA1156?2.5 GT/sDMI bus is a (perhaps modified) PCIe x4 v1.1 interface
    Socket G342010AMD Opteron (6000 series)ServerLGA1974?200–3200 MHzReplaces Socket F
    Socket C322010AMD Opteron (4000 series)ServerLGA1207?200–3200 MHzReplaces Socket F, Socket AM3
    LGA 1567/
    Socket LS    		2010Intel Xeon 6500/7500-seriesServerLGA1567?4.8–6.4 GT/s
    LGA 1155/
    Socket H2    		2011/Q1
    2011.01.09    		Intel Sandy Bridge (2nd gen)
    Intel Ivy Bridge (3rd gen)    		DesktopLGA1155?5.7 GT/sused for Intel 2nd generation, 3rd generation processors.

    Sandy Bridge supports 20 PCIe 2.0 lanes.
    Ivy Bridge supports 40 PCIe 3.0 lanes.
    Intel Mainstream Socket.

    LGA 2011/
    Socket R    		2011/Q3
    2011.11.14    		Intel Core i7 3xxx Sandy Bridge-E
    Intel Core i7 4xxx Ivy Bridge-E
    Intel Xeon E5 2xxx/4xxx (Sandy Bridge EP) (2/4S)
    Intel Xeon E5-2xxx/4xxx v2 (Ivy Bridge EP) (2/4S)    		Desktop
    Server    		LGA2011?4.8–6.4 GT/sSandy Bridge-E/EP and Ivy Bridge-E/EP both support 40 PCIe 3.0 lanes.
    Using the Xeon focused 2011 socket gives also 4 memory Channels.
    rPGA 988B/
    Socket G2    		2011Intel Core i7
    Intel Core i5
    Intel Core i3
    (2000, 3000 series)    		NotebookrPGA98812.5 GT/s, 4.8 GT/s
    Socket FM12011AMD Llano ProcessorsDesktopPGA9051.275.2 GT/sused for 1st generation APUs
    Socket FS12011AMD Llano ProcessorsNotebookPGA7221.273.2 GT/sused for 1st generation Mobile APUs
    Socket AM3+2011AMD FX Vishera[broken anchor]
    AMD FX Zambezi
    AMD Phenom II
    AMD Athlon II
    AMD Sempron    		DesktopPGA942 (CPU 71pin)1.273.2 GT/s
    LGA 1356/
    Socket B2    		2012Intel Xeon (E5 1400 & 2400 series)ServerLGA1356?3.2–4.0 GT/s
    Socket FM22012AMD Trinity ProcessorsDesktopPGA9041.27?used for 2nd generation APUs
    LGA 1150/
    Socket H3    		2013Intel Haswell (4th gen)
    Intel Haswell Refresh
    Intel Broadwell (5th gen)    		DesktopLGA1150??used for Intel's 4th generation (Haswell/Haswell Refresh), the handful of intel 5th generation processors
    rPGA 946B/947/
    Socket G3    		2013Intel HaswellNotebookrPGA94615.0 GT/s
    Socket FM2+2014AMD Kaveri
    AMD Godavari    		DesktopPGA9061.27?Compatible with AMD APUs such as "Richland" and "Trinity"
    Socket AM12014AMD Athlon
    AMD Sempron    		DesktopPGA7211.27?Compatible with AMD APUs such as "Kabini"
    LGA 2011-v32014
    (August and September)    		Haswell-E
    Haswell-EP    		DesktopLGA2011?Up to 68 GB/sec.
    Depends on DDR4 speed and channel count.    		Up to 40 PCIe 3.0 lanes.
    Up to 4 memory Channels.
    LGA 1151/
    Socket H4    		2015Intel Skylake (6th gen)
    Intel Kaby Lake (7th gen)
    Intel Coffee Lake (8th gen)
    Intel Coffee Lake Refresh (9th gen)    		DesktopLGA1151?5 GT/s - 8 GT/sused for Intel's 6th generation (Skylake), 7th generation (Kaby Lake), 8th generation (Coffee Lake) processors, and 9th generation (Coffee Lake Refresh) processors
    LGA 36472016Intel Xeon Phi
    Intel Skylake-SP    		ServerLGA3647??used for Intel's Xeon Phi x200 and Xeon Scalable processors
    Socket AM42016

    AMD Athlon Bristol Ridge
    AMD Athlon Raven Ridge 14nm
    AMD Athlon Picasso 12nm
    AMD Ryzen 1000 series
    AMD Ryzen 2000 series
    AMD Ryzen 3000 series
    AMD Ryzen 4000 series
    AMD Ryzen 5000 series

    		DesktopPGA13311Depends on DDR4 speedcompatible with AMD Ryzen 9, Ryzen 7, Ryzen 5 & Ryzen 3 Zen based processors
    Socket SP32017AMD Epyc Naples
    AMD Epyc Rome
    AMD Epyc Milan    		ServerLGA4094?Depends on DDR4 speedcompatible with AMD Epyc processors
    Socket TR4/
    Socket SP3r2    		2017AMD Ryzen Threadripper (1000 series)
    AMD Ryzen Threadripper (2000 series)    		DesktopLGA4094?Depends on DDR4 speedcompatible with AMD Ryzen Threadripper processors
    LGA 2066/
    Socket R4    		2017Intel Skylake-X
    Intel Kaby Lake-X
    Intel Cascade Lake-X    		Desktop
    Server    		LGA2066??Used for Intel's 7th generation (Skylake-X & Kaby Lake-X & Cascade Lake-X) series of Core-X processors
    Socket sTRX4/
    Socket SP3r3    		2019AMD Ryzen Threadripper (3000 series)DesktopLGA4094?Depends on DDR4 speedcompatible with 3rd generation AMD Ryzen Threadripper processors
    LGA 41892020Intel Cooper Lake
    Intel Ice Lake-SP    		Desktop
    Server    		LGA4189[16]0.99[16]
    LGA 12002020Intel Comet Lake (10th gen)
    Intel Rocket Lake (11th gen)    		DesktopLGA1200
    LGA 17002021Intel Alder Lake (12th gen)
    Intel Raptor Lake (13th gen)

    Intel Raptor Lake (14th gen)

    		DesktopLGA1700
    Socket sWRX82022AMD Ryzen Threadripper Pro (5000 series)DesktopLGA4094
    Socket AM52022AMD Ryzen 7000 series
    AMD Ryzen 8000 series (APU)
    AMD Ryzen 9000 series    		DesktopLGA1718Zen 4 Ryzen CPUs
    Socket SP52022AMD Epyc GenoaServerLGA6096Used for Epyc Genoa and Milan
    LGA 46772022Intel Sapphire Rapids
    intel Emerald Rapids    		ServerLGA4677
    Socket SP62023AMD Epyc SienaServerLGA4844
    Socket sTR52023AMD Ryzen Threadripper
    AMD Ryzen Threadripper Pro (7000 series)    		DesktopLGA4844
    LGA 18512024Intel Meteor Lake-PS (Core Ultra Series 1)
    Intel Arrow Lake (Core Ultra 200S Series)
    TBA    		DesktopLGA1851
    LGA 47102023Intel Granite RapidsServerLGA4710
    LGA 75292024Intel Sierra ForestServerLGA7529
    Socket
    name    		Year of introductionCPU families supportedComputer typePackagePin countPin pitch
    (mm)    		Bus clock &
    transfers    		Notes
    1. ^ Some late model Socket 3 motherboards unofficially supported FSB speeds up to 66MHz
    2. ^ This is a double data rate bus. FSB in the later models.

    Other ISAs

    Socket
    name    		Year of introductionCPU families supportedComputer typePackagePin countPin pitch
    (mm)    		Bus clock &
    transfers    		Notes
    Daughter Card1995PowerPC 601+DesktopSlot146?40-60 Hz
    Socket 288?PowerPC 603+DesktopPGA288?40-60 Hz
    Socket 4311995Alpha 21064/21064ADesktopPGA431?12.5–66.67 MHz
    Socket 4991997Alpha 21164/21164ADesktopPGA499?15–100 MHz
    Socket 5871998Alpha 21264DesktopPGA587?12.5–133 MHz
    Slot B1999Alpha 21264/21264ADesktopSlot587?100 MHz[17]
    PAC4182001Intel ItaniumServerPGA418?133 MHz
    PAC6112002Intel Itanium 2
    HP PA-8800, PA-8900    		ServerPGA611?200 MHz
    LGA 12482010Intel Itanium 9300-series and upServerLGA1248?4.8-6.4 GT/s
    Socket
    name    		Year of introductionCPU families supportedComputer typePackagePin countPin pitch
    (mm)    		Bus clock &
    transfers    		Notes

    Slotkets

    Slotkets are special adapters for using socket processors in bus-compatible slot motherboards.

    See also

    References

    1. ^ "Intel 815 Chipset Family" (PDF). Intel. Archived from the original (PDF) on December 28, 2009. Retrieved May 4, 2009.
    2. ^ "423 Pin Socket (PGA423) Design Guidelines" (PDF). Intel. Archived (PDF) from the original on December 29, 2009. Retrieved May 3, 2009.
    3. ^ "495-Pin and 615-pin micro-PGA ZIF Socket Design Specification Application Note" (PDF). Intel. Archived from the original (PDF) on February 2, 2012. Retrieved May 3, 2009.
    4. ^ a b "mPGA 604 Socket Mechanical Design Guide" (PDF). Intel. Archived from the original (PDF) on June 17, 2009. Retrieved May 3, 2009.
    5. ^ "Intel Pentium 4 Processor 478-Pin Socket (mPGA478) Design Guidelines" (PDF). Intel. Retrieved May 3, 2009.
    6. ^ "AMD Sempron Processor Product Data Sheet" (PDF). AMD. Archived from the original (PDF) on April 19, 2009. Retrieved May 3, 2009.
    7. ^ "AMD Opteron Processor Product Data Sheet" (PDF). AMD. Archived from the original (PDF) on January 17, 2009. Retrieved May 3, 2009.
    8. ^ CPU only has 478 pins, but the socket has 479.
    9. ^ a b c d "AMD Opteron Processor Product Data Sheet" (PDF). AMD. Archived from the original (PDF) on January 17, 2009. Retrieved May 3, 2009.
    10. ^ "LGA 775 Socket Mechanical Design Guide" (PDF). Intel. Retrieved May 4, 2009.
    11. ^ "LGA771 Socket Mechanical Design Guide" (PDF). Intel. Archived from the original (PDF) on August 24, 2009. Retrieved May 3, 2009.
    12. ^ "Low-Profile Socket S1 Design Specification" (PDF). AMD. Archived from the original (PDF) on December 3, 2008. Retrieved May 3, 2009.
    13. ^ "Thermal Design Guide for Socket F (1207) Processors" (PDF). AMD. Archived from the original (PDF) on December 5, 2008. Retrieved May 6, 2009.
    14. ^ CPU only has 938 pins, but the socket has 941.
    15. ^ AMD Documentation "Socket AM3 design Specification" (PDF). AMD. Archived from the original (PDF) on January 21, 2012. Retrieved January 5, 2012.
    16. ^ a b "LGA 4189 Socket and Hardware" (PDF).
    17. ^ Hachman, Mark (February 2, 1999). "Alpha camp moves to "Slot B" connector to push further into workstations". EE Times. Retrieved November 10, 2022.
    • Socket ID Guide up to 2005
    • CPU Sockets Chart - A fairly detailed table listing x86 Sockets and associated attributes.
    • techPowerUp! CPU Database
    • Processor sockets
    Retrieved from "https://en.wikipedia.org/w/index.php?title=CPU_socket&oldid=1324332772"