The Arctic Liquid Freezer III 420 and the Noctua NH-D15 G2 are tied in this objective comparison, as each component leads in one specific category with one tie. The Arctic Liquid Freezer III 420 holds the most significant advantage in this matchup, offering a TDP rating that is 17% better than its competitor. Conversely, the Noctua NH-D15 G2 provides a 2% improvement in noise level, representing its most impactful spec advantage over the liquid cooling solution.

Users prioritizing maximum thermal capacity should select the Arctic Liquid Freezer III 420 for its superior TDP rating. This component is the logical choice for those managing high-heat hardware that demands the highest cooling potential. Alternatively, those who prioritize a quieter computing environment should choose the Noctua NH-D15 G2. This air cooler is the better option for users who value a lower noise level as their primary requirement for system operation.