Template:AM5 chipsets

Model	Release date	Chipset PCIe lanes^[a]	Multi-GPU		USB support^[b]	Storage features		Processor overclocking	TDP	CPU support	Architecture	Chipset links		Ref.
Model	Release date	Chipset PCIe lanes^[a]	CrossFire	SLI	USB support^[b]	SATA ports	RAID	Processor overclocking	TDP	Zen 4	Architecture	CPU	Interchipset	Ref.
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	—	^[1]^[2]
B650	Oct 2022	PCIe 4.0 ×8 PCIe 3.0 ×4	Yes		1, 4, 0, 6 or 0, 6, 0, 6			Yes	~7W					^[3]^[4]
B650E^[c]	Oct 2022	PCIe 4.0 ×8 PCIe 3.0 ×4			1, 4, 0, 6 or 0, 6, 0, 6				~7W					^[3]^[4]
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^[d]			~14W^[e]		Promontory 21 ×2		PCIe 4.0 ×4	^[3]^[4]
X670E^[c]	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^[d]			~14W^[e]		Promontory 21 ×2		PCIe 4.0 ×4	^[3]^[4]

^ PCIe lanes provided by the chipset. The CPU provides other PCIe 5.0 lanes.
^ USB 3.2 Gen 2x2, USB 3.2 Gen 2, USB 3.2 Gen 1, USB 2.0
^ ^a ^b 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.
^ Each Promontory 21 chipset provides 4 SATA ports for a total of 8.
^ Motherboards marketed as X670 and X670E feature two Promontory 21 chipsets, each having a TDP of ~7W.

References