In this review Frostytech is testing the new Titan TTC-NK85TZ Fenrir heatsink, a good CPU cooler from a manufacturer which has had a spotty past. If you can find the Titan TTC-NK85TZ Fenrir you'll find it equivalent to models like the Sunbeam Core-contact freezer. Like many tower heatsinks, the TTC-NK85TZ Fenrir heatsink has four exposed 8mm diameter direct contact heatpipes at the base. These allow heat to be efficiently conducted from the CPU to the aluminum fins without passing first through a secondary heat spreader where voids can impeed thermal conduction.
FULL STORY @ FROSTYTECH (http://www.frostytech.com/articleview.cfm?articleID=2383)