What Is a CPU Socket? A Basic Definition

CPU socket (Image credit: Mastermilmar/Shutterstock)

A CPU socket uses a series of pins to connect a CPU’s processor to the PC’s motherboard. If a CPU is connected via a CPU socket, it is not soldered and can therefore be replaced. CPU sockets are more common with desktop gaming PCs than they are on laptops

When buying a motherboard, finding the best motherboard isn't just about making sure it has the features you want. Step one is making sure the motherboard has the right CPU socket (and a supported chipset) for your CPU model. 

Even if you have the best CPU, it won't work with just any CPU socket. Intel has different socket types for its mainstream CPUs versus its high-end desktop (HEDT) ones, as does AMD.

Intel and AMD CPU Sockets

Below we break down the consumer CPU sockets for current and prior generation Intel and AMD desktop CPUs. 

Swipe to scroll horizontally
CPU Brand CPU Socket Name CPU Compatible Chipsets Market
Intel LGA 2066 10th Gen Core X299 HEDT
Intel LGA 1700 12th Gen Core Z690, H670, B660, H610 Mainstream
Intel LGA 1200 11th Gen Core, 10th Gen Core Z490, H470, B460, H410 Mainstream
Intel LGA 1151 9th Gen Core, 8th Gen Core Z390, Z370, Z370, Q370, H370, B365, B360, H310 Mainstream
AMD sTRX4 Ryzen Threadripper 3000 TRX40 HEDT
AMD TR4 Ryzen Threadripper 2000 and 1000 X399 HEDT
AMD AM4 Ryzen 5000, 3000, 2000 and 1000 X570, X470, X370, B550, B450, B350, B450, A320, X300, A300 Mainstream

Intel users can also figure out which CPU socket their chip uses with Intel's directions on this page and use Intel’s Product Compatibility Tool to see which motherboard fits your CPU.

This article is part of the Tom's Hardware Glossary.

Further reading:

Scharon Harding

Scharon Harding has over a decade of experience reporting on technology with a special affinity for gaming peripherals (especially monitors), laptops, and virtual reality. Previously, she covered business technology, including hardware, software, cyber security, cloud, and other IT happenings, at Channelnomics, with bylines at CRN UK.

  • archfrog
    A bit too brief, perhaps :)

    I was looking forward to a treatise of how modern CPU's use their many, many pins, and got only a teaser that told me nothing new.
    Reply