The Thermalright Ultra-120 is the cooler to beat.  You have probably seen it’s name in mentioned in most heatsink reviews, sitting beside temperatures that are lower than whichever heatsink was being reviewed.  PC Apex reminds us why it is so powerful, it weighs over 700g, is almost 6.5″ tall and 5″ thick on it’s wider side. 
“My first impression when I opened the box was, “Holy c%@P, that will never fit.” And sure enough, it would not fit in the NZXT Adamas case I had intended on testing it in. Even with the intake fan removed from the side panel of the Adamas, the gargantuan cooler was about .25″ too tall for the side panel to fit in place. Of all the tower and mid tower cases I’ve got around, it might fit in half of them. However it easily fit on both the K8 and 775 motherboards available to me, but the orientation of the cooler would be determined by the placement of components around the socket.”

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