The Thermalright HR-02 is a passive CPU cooler, and we're not going to baby it today. Not only are we going to strap it without a fan onto a Core i7 monster, we're also going to run it head-to-head against two of the best heatsinks we've seen on the market, the Noctua D14 and Prolimatech Megahalems to find out which one is the best passive heatsink out there.