Socket AM5

Socket AM5 (LGA 1718) is a zero insertion force flip-chip land grid array (LGA)[1] CPU socket designed by Advanced Micro Devices, that is used for AMD Ryzen microprocessors starting with the Zen 4 microarchitecture.[2][3] AM5 replaces the Socket AM4 and is AMD's first LGA socket designed for mainstream, non-enthusiast CPUs.

Socket AM5
Release dateSeptember 27, 2022 (2022-09-27)
Designed byAMD
Manufactured byLotes
TypeLGA-ZIF
Chip form factorsFlip-chip
Contacts1718
FSB protocolPCI Express, Infinity Fabric
Processor dimensions40mm × 40mm
1,600mm2
ProcessorsRyzen:
PredecessorAM4
Memory supportDDR5
This article is part of the CPU socket series

AMD officially confirmed details about the Ryzen 7000 series platform, including support for PCI Express 5.0 and DDR5 as part of their 2022 Product Premiere.[4] The platform was launched in September 2022.[5]

Background

In March 2017, with the launch of its new Zen processors, AMD used the AM4 socket that they had previously used with their Bristol Ridge (derived from Excavator) powered Athlon-X4 and some A-Series, a pin grid array (PGA) socket that they promised to support until 2020.[6] On July 6, 2023, AMD released its final CPU for the AM4 socket, the 5600X3D, which featured 96MB of 3D-stacked L3 cache.[7]

Announcement

At CES 2022, AMD CEO Lisa Su unveiled the AM5 socket and the integrated heat spreader design for the upcoming Ryzen 7000 processors due in late 2022.

On May 23, 2022, AMD provided details about the AM5 socket, its corresponding motherboards, and Ryzen 7000 Series CPUs at Computex in Taipei, Taiwan.[8] At Computex, motherboard vendors ASRock, Gigabyte and others debuted their new X670 motherboards featuring the AM5 socket.[9][10]

AMD stated that it plans to support the AM5 socket for a number of years as it did with the AM4 socket.[11] During the Ryzen 7000 series reveal on August 29, 2022, AMD confirmed that it would support the AM5 socket until at least 2025.[12]

Features
Image of the AM5 socket with the Socket Actuation Mechanism (SAM) in open position, exposing the pins

Heatsink

The AM5 socket specifies the 4 holes for fastening the heatsink to the motherboard to be placed in the corners of a rectangle with a lateral length of 54×90 mm, as well as UNC #6-32 screw threads for the backplate, identical to those of the preceding AM4 socket. Furthermore, the Z-height of the CPU package is kept the same as that of AM4, for backward compatibility of heatsinks.[16]

Unlike AM4, the backplate on AM5 is not removable, as it also serves the purpose of securing the CPU retention mechanism for the LGA socket.[17]

Not all existing CPU coolers from AM4 are compatible. In particular, coolers that use their own backplate mounting hardware, instead of the default motherboard-provided backplate, will not work. Some cooler manufacturers are offering upgrade kits to allow incompatible older coolers to be used on AM5.[18][19]

Chipsets
Model Release
date		 Chipset
PCIe lanes[lower-alpha 3]		 Multi-GPU USB support[lower-alpha 4] Storage features Processor
overclocking		 TDP CPU support Architecture Chipset links Ref.
CrossFire SLI SATA ports RAID Zen 4 CPU Interchipset
A620 Mar 2023 PCIe 3.0 ×8 No No 0, 2, 2, 6 4 0,
1,
10		 No ~4.5W Yes Promontory 21
×1		 PCIe 4.0 ×4 — [20][21]
B650 Oct 2022 PCIe 4.0 ×8
PCIe 3.0 ×4		 Yes 1, 4, 0, 6 or
0, 6, 0, 6		 Yes ~7W [22]
[23]
B650E[lower-alpha 5]
X670 Sep 2022 PCIe 4.0 ×12
PCIe 3.0 ×8		 2, 8, 0, 12 or
1, 10, 0, 12 or
0, 12, 0, 12		 8[lower-alpha 6] ~14W[lower-alpha 7] Promontory 21
×2		 PCIe 4.0 ×4 [22]
[23]
X670E[lower-alpha 5]
  1. Thermal design power
  2. Electrical power dissipation
  3. PCIe lanes provided by the chipset. The CPU provides other PCIe 5.0 lanes.
  4. USB 3.2 Gen 2x2, USB 3.2 Gen 2, USB 3.2 Gen 1, USB 2.0
  5. E or "Extreme" branding is a guarantee that PCIe 5.0 is supported on both the motherboard's graphics slot and NVMe slots. E models provide access to all 24 PCIe 5.0 lanes from the processor. Non-E models only support 8 PCIe 5.0 lanes on NVMe slots while the rest of the lanes on graphics slots are dropped to PCIe 4.0.
  6. Each Promontory 21 chipset provides 4 SATA ports for a total of 8.
  7. Motherboards marketed as X670 and X670E feature two Promontory 21 chipsets, each having a TDP of ~7W.

References
  1. Ridley, Jacob (January 4, 2022). "AMD shows off future Zen 4 Ryzen CPUs and they look absolutely wild". PC Gamer. Retrieved January 4, 2022.
  2. Ganti, Anil (May 25, 2021). "New leak envisions what the AM5 socket could look like and highlights key AMD Ryzen 7000 Raphael specs". Notebook Check. Retrieved July 8, 2021.
  3. Liu, Zhiye (May 22, 2021). "AM5 Socket May Be AMD's Doorway To DDR5". Tom's Hardware. Retrieved July 8, 2021.
  4. AMD (January 4, 2022). "AMD 2022 Product Premiere - Recap". YouTube. Retrieved February 25, 2022.
  5. Hill, Luke (August 30, 2022). "AMD Details Zen 4 Ryzen 7000 and AM5 – Launch September 27th". KitGuru. Retrieved March 7, 2023.
  6. Castle, Katherine (April 19, 2018). "AMD confirm AM4 motherboards will be supported until 2020". Rock Paper Shotgun. Retrieved May 7, 2022.
  7. Alcorn, Paul (July 6, 2023). "AMD Ryzen 5 5600X3D Review: New Mid-Range Gaming Champ Is a Micro Center Exclusive". Tom's Hardware. Retrieved July 25, 2023.
  8. James, Dave (May 20, 2022). "Dr. Lisa Su is teasing AMD Zen 4 CPU details on Monday and Gigabyte is promising AM5 boards". PC Gamer. Retrieved May 20, 2022.
  9. Hill, Brandon (May 20, 2022). "Gigabyte Confirms X670 AMD Ryzen 7000 Zen 4 AM5 Motherboards for Computex". Tom's Hardware. Retrieved May 20, 2022.
  10. Tyson, Mark (May 20, 2022). "Computex Organizer Confirms ASRock AMD X670E Motherboards Incoming". Tom's Hardware. Retrieved May 20, 2022.
  11. Hagedoom, Hilbert (January 10, 2022). "AMD aims for AM5 to have a similar lifespan to AM4 (5 years)". The Guru of 3D. Retrieved May 7, 2022.
  12. James, Dave (August 29, 2022). "AMD plans to support the new AM5 socket through 2025 and beyond". PC Gamer. Retrieved August 30, 2022.
  13. Dexter, Alan (April 25, 2022). "AMD's AM5 platform won't support DDR4 at launch". PC Gamer. Retrieved May 7, 2022.
  14. Smith, Ryan; Bonshor, Gavin (September 26, 2022). "AMD Zen 4 Ryzen 9 7950X and Ryzen 5 7600X Review: Retaking The High-End". AnandTech. Retrieved October 1, 2022.
  15. Alcorn, Paul (May 26, 2022). "AMD Corrects Socket AM5 for Ryzen 7000 Power Specs: 230W Peak Power, 170W TDP (Updated)". Tom's Hardware. Retrieved May 29, 2022.
  16. Leather, Anthony. "Beware Socket AM5 cooler compatibility". Custom PC. Retrieved October 19, 2022.
  17. Killian, Zak (October 3, 2022). "How To Know If Your Existing CPU Cooler Is Compatible With AM5 For Zen 4 Builds". HotHardware. Retrieved October 19, 2022.
  18. Tyson, Mark (September 22, 2022). "Noctua Confirms Its AMD AM4 Compatible Coolers Will Also Support AM5 Platforms". Tom's Hardware. Retrieved October 19, 2022.
  19. "EK Reveals AM5 Compatibility Roadmap for All CPU Cooling Products". TechPowerUp. September 5, 2022. Retrieved October 19, 2022.
  20. Peak, Sebastian (March 31, 2023). "AMD Announces A620 Chipset for Ryzen 7000 Series CPUs". PC Perspective. Retrieved April 2, 2023.
  21. Alcorn, Paul (April 1, 2023). "AMD's A620 Chipset Quietly Arrives Without Full Support for 65W-Plus CPUs". Tom's Hardware. Retrieved April 2, 2023.
  22. Smith, Ryan; Bonshor, Gavin (September 26, 2022). "AMD Zen 4 Ryzen 9 7950X and Ryzen 5 7600X Review: Retaking The High-End". AnandTech. Retrieved October 2, 2022.
  23. Cunningham, Andrew (September 27, 2022). "Everything you need to know about Zen 4, socket AM5, and AMD's newest chipsets". Ars Technica. Retrieved October 2, 2022.
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