"Exactly how does the Noctua NH-D15 stack up? On all three of Frostytech's synthetic thermal test platforms the Noctua NH-D15 heatsink offers the best, quietest cooling performance of the tower-class heatsinks we've thus tested. In other words, that means several all-in-one liquid cooler models do perform cooler than the NH-D15, but they're also much louder. The only two tower coolers which have a slight edge are also much louder."
Max Page - Frosty-Tech.
Noctua NH-D15 CPU cooler review by Frosty-Tech - Introduction & Conclusion.
