The Thermalright Peerless Assassin 120 is the objective winner of this comparison, securing two out of three spec victories. While the DeepCool LT720 360mm holds a significant advantage in thermal design power capacity, outperforming its competitor by 59% in that specific metric, the Thermalright Peerless Assassin 120 ultimately provides better overall value. Its most impactful advantage is a 72% superior MSRP, making it the more cost-effective choice based on the provided specifications.

Users prioritizing budget efficiency should select the Thermalright Peerless Assassin 120, as it offers a substantial advantage in pricing. Conversely, those who require the highest possible thermal management capacity should opt for the DeepCool LT720 360mm. By choosing the latter, users gain a 59% higher TDP rating, which is the primary benefit of selecting this specific liquid cooling solution over the air-cooled alternative.