According to latest rumors from Tom’s Hardware, the next-gen AMD Zen 4 Ryzen 7000 series desktop processors will only support DDR5 memory, which means upcoming high-end X670 motherboard and mid-range B650 motherboard will only support DDR5 memory.
This means that unlike Intel Alder Lake and its successor Raptor Lake, AMD Raphael Zen 4 Ryzen 7000 series will require a more cash commitment from new users, as DDR5 memory price is still more than twice as high as DDR4’s.
Also, according to CapFrameX, the leaked AM5 specification document does not mention DDR4 spec at all:
