I got AMD Radeon RX 570 4GB and Asus Prime A320m/K motherboard and Im wondering if I can overclock it (good cooling system). And btw this was buget pc and I cant buy better motherboard.
Welcome to the forums, newcomer!
You can overclock the GPU on your platform, the only questions are:
1| What is the make and model of your PSU and how old is it? 600W 1 year old
2| What is the make and model of your chassis and what sort of an airflow do you have? Good airflow (I was looking for that)
3| What sort of ambient room air temps are you dealing with? Pretty good temp not very high not very low.
What processor are you working with? -AMD Ryzen 3 3200G PRO. I would overclock the rams on that platform but be prepared for some reliability issues on that motherboard over a long term period if you plan to overclock on the CPU, provided your processor can be overclocked.