"GPU's are getting faster and therefore hotter, The overclocking bug is striking more people, this can only mean one thing heat a overclockers worst enemy.
Bigger heatsinks are one solution but without the airflow there not much of a better solution.
The ideal method for combating this heat is blowholes, cut a dirty great hole in the side of your case and attach a fan.
Whilst this is a solution for most people a lot of people don't have the skills / desire to chop up there case.
This is where Tweakmonster come in with there fan bracket, It allows users to direct airflow over there graphics and PCI cards without the need to break out the power tools."
Source :
JSI Hardware