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Socket TR4

Type	LGA-ZIF
Chip form factors	Flip-chip
Contacts	4094
FSB protocol	PCI Express, Infinity Fabric
Processor dimensions	58.5mm x 75.4mm 4410.9 mm
Processors	Ryzen Threadripper: Whitehaven Colfax
Successor	sTRX4
Memory support	DDR4
This article is part of the CPU socket series

Socket TR4, also known as Socket SP3r2, is a zero insertion force land grid array (LGA) CPU socket designed by AMD supporting its first- and second-generation Zen-based Ryzen Threadripper desktop processors, launched on August 10, 2017 for the high-end desktop and workstation platforms. It was succeeded by Socket sTRX4 for the third generation of Ryzen Threadripper processors.

TR4 is AMD's second LGA socket for a consumer product after the short lived Socket 1207 FX. It is physically identical to, but electrically incompatible with both AMD's server Socket SP3, and TR4's successor, Socket sTRX4.

While the SP3 server socket does not require a chipset, instead utilizing a system-on-a-chip design, TR4 and its successor HEDT sockets require a chipset to unlock the features of the CPU. For TR4, the AMD X399 chipset was released, which allows a total of 64 PCIe 3.0 lanes for quad SLI/CrossFire configurations.

The socket is made by both Foxconn and Lotes.

See also

• Ryzen
• Zen (microarchitecture)
• Socket AM4
• Socket SP3
• Socket sTRX4

References

1. Ung, Gordon (May 30, 2017). "AMD's 'TR4' Threadripper CPU socket is gigantic". PCWorld. Retrieved November 16, 2022.
2. "CoolerMaster Wraith Ripper CPU cooler for Threadripper". Cooler Master. Retrieved November 16, 2022.
3. ^ Cutress, Ian (August 10, 2017). "The AMD Ryzen Threadripper 1950X and 1920X Review: CPUs on Steroids". AnandTech. Retrieved August 10, 2017.
4. Shimpi, Anand Lal (November 30, 2006). "AMD's Quad FX: Technically Quad Core". AnandTech. Retrieved August 13, 2018.
5. Hruska, Joel (August 1, 2017). "MSI Shows How to Install AMD's Threadripper CPU". ExtremeTech. Retrieved August 10, 2017.
6. Cutress, Ian (November 7, 2019). "3rd Gen Ryzen Threadripper, Up to 32-Cores - AMD Q4: 16-core Ryzen 9 3950X, Threadripper Up To 32-Core 3970X, Coming November 25th". AnandTech. Retrieved November 28, 2019.
7. "AMD SocketTR4 X399 Platform-based Motherboards". AMD. Retrieved December 6, 2018.
8. Terkelsen, Jacob (November 22, 2017). "MSI X399 Gaming Pro Carbon AC Motherboard Review". Tom's Hardware. Retrieved December 10, 2019.

• AMD sockets