I am going to upgrade my 8gb desktop pc. I have 2 free slots and 2 slots with 2x4gb 2400Mhz. I will buy 2x8gb with 3600 MHz. Should I put them together and have 24gb at 2400Mhz or should I remove the 2x4 in favor of the 3600Mhz.

I’m asking because I read that when you have 2 different ram speeds it will default to the lower one.

Edit: it’s for gaming and I have a Ryzen 3 1200 with a b350m as a motherboard