Whenever our CPU temperatures start creeping into the high 80s, we’re usually quick to a**ume that the cooler isn’t good enough. After all, it’s the one component responsible for pulling heat away from the CPU. I was never really impressed with my 360mm AIO’s performance because my 5900X always brushed past 80°C while playing AAA games, which felt surprisingly high for a radiator that large. At times, it made me question whether I should’ve gone with a 420mm AIO instead.