Even though Intel was first to market with the Alder Lake DDR5 implementation, the performance gains over the DDR4 did not wow anyone, as the DDR5-4800 modules are barely faster than DDR4-3200, and the memory controllers add too much latency at higher frequencies. AMD wants to tackle this problem for the upcoming Zen 4 processors by introducing improved overclocking features.
https://www.notebookcheck.net/AMD-hints-at-excellent-DDR5-RAM-overclocking-capabilities-for-the-upcoming-Zen-4-Raphael-desktop-processors.613575.0.html