[There are two basic designs used for waterblocks today. One style is called impingement and the other style doesn’t really have a defined name. The fundamental difference between the two is that impingement needs a powerful pump to get good performance, and non-impingement blocks are capable of good performance without a powerful pump. Now you are probably thinking to yourself, why get the impingement then? Well the impingement blocks do perform better when fitted with a powerful enough pump. In fact they are the best performing blocks in existence at the moment. But because of their requirement for a powerful pump they are not often used in budget pre-built systems. An example of a commercially available impingement design block is the TDX from Danger Den (
www.dangerden.com), and the perfect example of the non-impingement design is the MCW6002 from Swiftech (
www.swiftnets.com).
So here are the basics that you should know.
Impingent = highest performance but needs a strong pump to get there (Example Here:
Outside Picture,
Inside Picture)
Non-Impingement = good performance without much pump requirements (Example Here:
Internal picture)