There’s also a simple mod you can do to the MacBook Air (installing a thermal pad on the SoC) which significantly improves heat dissipation - check YouTube.
I have a similar setup (except 8 core) and with the mod I don’t feel any need for an external fan for gaming.
Yeah I was tempted to do it to make my fan cooling work even better, but I want to be able to resell this Air soon. It's being replaced with a M2 Mini with 24GB of RAM. Finally tired of the 8GB life.
I have a similar setup (except 8 core) and with the mod I don’t feel any need for an external fan for gaming.