Key difference between DDR4 and DDR3 RAM

DDR4 versus DDR5: Is it time to upgrade your RAM? ddr5 in ddr4 slot Will DDR5 server memory modules fit into a DDR4 socket? No, DDR5 server memory and DDR4 motherboards are incompatible DDR5 will only fit in DDR5 server ddr5 in ddr4 slot I have seen an article about DDR5 ram and they said it is compatible with DDR4 motherboard slots and how they function, but I have seen that

ddr5 slot The H610M+ has one DDR4 and one DDR5 memory slot DDR4-3200 and DDR5-4800 memory modules with a maximum capacity of 32GB are supported by the