Liquid Ninjas takes a look at two water blocks for those of you interested.
The designs of the Maze3 and the MCW462 are radically different. The Maze3 waterblocks use an internal 'maze' which forces water to flow around and around inside the waterblock. The longer water molecules stay in the waterblock to absorb heat, the better the waterblock usually performs. The MCW462 is instead, a large empty chamber. This waterblock relies on turbulence and isobaric pressures to help keep the water held moving around in the block.More information at Liquid Ninjas