By now we are all familiar with Sapphire and their Vapor-X technology based heatsinks as an upgrade feature on many of their graphic cards. Yet if for some reason you have been out of the loop for a while, then here is a recap on how the vapor chamber works.
A vapor chamber is very similar in theory to heat-pipes and how they work. A chemical coolant is turned into a vapor at the point where heat is made (ie: a graphics chip or processor) and that heat is then adsorbed by the vaporized coolant. When this happens the vapor travels to another point, which is cooler than it's point of origin, and the absorbed heat is dissipated when the vapor is condensed back to a liquid. Think of it like a hot and humid day where you open the refrigerator to grab a cold drink in a bottle or can, where almost as soon as the drink container exits the fridge it has beaded up with moisture droplets. In this instance the moisture-rich ambient air has cooled when it came in contact with the cold bottle or can, condensing into water to the point of eventually making drops on the surface. This process then happens over and over again in it's sealed vapor chamber; thus, cooling the source of heat it's attached to.
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