The difference between ETH and RVN overclocking and how to overclock better on RVN

Because of ETH EIP 1559, I currently plan to switch to RVN mining, but I have some questions about overclocking. I hope everyone can tell me the difference between ETH and RVN mining overclocking methods, and how to better overclock. Thank you very much (my graphics card is RTX2060, RTX3060)