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AMD

AM4

A mature, inexpensive platform with a huge parts pool

AMDMature
Launched
2016
Support through
2025
Memory
DDR4
PCIe
PCIe 4.0
Cooler mount
AM4
Chipsets
4

AM4 was AMD's desktop foundation for six years and saw five CPU generations. Its remaining strength is price: boards, DDR4 memory and second-hand CPUs cost far less than their AM5 equivalents, and the gaming performance gap is often narrower than the generation numbers suggest.

The limitation is that it goes nowhere. Buying AM4 today means buying a closed system — the next CPU upgrade will also mean a new board and new memory.

Chipsets

ChipsetsAM4
ChipsetTierOverclockingRead more
X570FlagshipCPU and memoryThe only AM4 chipset with PCIe 4.0 throughout. Some boards use an actively cooled chipset fan.
B550MainstreamCPU and memoryThe sweet spot on AM4: PCIe 4.0 for the GPU and primary NVMe, with no chipset fan.
B450BudgetCPU and memoryCheap and common, but PCIe 3.0 only. Check the BIOS version before pairing it with a newer CPU.
A520BudgetNoneNo CPU overclocking. Only sensible in the cheapest office-grade builds.