Viper's Lair has put up a review on the Swiftech MC462A heatsink

The Swiftech MC462A beats out the Vantec CCK-6035D by about 2C/4F degrees, and destroys everyone else by quite a substantial margin. Although 2C/4F doesn't seem like a whole lot, I think that with faster CPUs, which run hotter (Palomono cores are supposed to address the heat issues), the Swiftech MC462A will be better suited due to the mass of it.

Read more