The Arctic Liquid Freezer III 420 is the objective winner of this comparison, securing victories in two out of three evaluated categories. Its most significant technical advantage is a TDP rating that outperforms the competition by 46 percent. This superior thermal capacity makes it the more robust option for handling high-heat loads, providing a clear edge in raw cooling potential for demanding system configurations that require maximum heat dissipation efficiency.

Choose the Arctic Liquid Freezer III 420 if your primary goal is achieving the highest possible thermal management capability for your processor. Conversely, select the Thermalright Peerless Assassin 120 SE if budget efficiency is your priority, as it offers a 68 percent advantage in MSRP. This makes the latter an ideal choice for users seeking a cost-effective cooling solution that remains competitive in the remaining performance metrics despite the lower price point.