With video cards running faster and hotter than ever before, keeping them cool becomes more important, especially if you plan on overclocking your video card. Most overclockers tend to put a larger heatsink and fan on their video card in the pursuit of more speed. The disadvantage of this type of setup is the loss of one or two PCI slots and the end of your video card warranty. For some, this was worth the performance increase. Others needed a more eloquent solution. This is where card coolers come in.