The Arctic Liquid Freezer III 420 is the objective winner of this comparison, securing more individual specification victories than its counterpart. While the Arctic Liquid Freezer III 360 A-RGB holds a 10% advantage in noise level, the 420 model provides a more significant benefit by offering a 27% advantage in MSRP. This makes the larger unit the more efficient choice regarding initial investment costs while maintaining superior performance across the majority of the measured technical specifications.

Users prioritizing a quieter computing environment should select the Arctic Liquid Freezer III 360 A-RGB to take advantage of its lower noise output. Conversely, those seeking the most cost-effective cooling solution should choose the Arctic Liquid Freezer III 420. By opting for the 420, buyers benefit from the superior MSRP advantage while securing a component that outperformed the 360 in the majority of the evaluated technical categories.