Ryzen has seen improvements to DDR4 module support with each generation and to take advantage of the latest generation you may need to upgrade your motherboard to one with the latest chipset, depending on vendor support. Even if your older board supports the newer generation, likely you have a more limited QVL for DDR4 modules, so compatibility and perf may be limited.

This is why I implied it had limited impact, though there is some truth to boards with newer AMD chipsets offering better memory support.

This was a response to parent comment stating it was greedy behavior to try to get consumers to buy new motherboards with new chipsets, when the chipsets have little impact on RAM compatibility/support.