"Amazingly enough, the Thermalright Ultra-90 heatsink is almost as powerful as the larger Ultra-120 heatsink. As you might have guessed the numbers trailing the 'Ultra' relate to fan size; 92mm or 120mm. Like the Ultra-120, the Thermalright Ultra-90 heatsink is built around three U-shaped heat pipes, a few dozen widely spaced aluminum cooling fins and a copper base plate.

The heatsink is sold without a fan, the idea being it allows users to customize it with the fan of their choice. A good low speed 92mm fan translates into quiet cooling, or a high speed 92mm fan would yield lower temperatures with some sacrifices to sound output.Over the next three pages of this Frostytech review, we'll tell you if the Thermalright Ultra-90 is worth that $40 bucks or not...