X-bit Labs took a look at four VGA coolers: the AeroCool Double Power, ThermalTake DuOrb, Zalman VF1000 LED and Arctic Cooling Turbo Module.
When AMD Radeon HD 3850/3870 and Nvidia GeForce 8800 GT graphics cards appeared in the market, the search for alternative cooling systems regained its acuteness. The reason for that were very noisy and not efficient enough reference coolers on these graphics cards. In fact, standard cooling systems have two work modes: the coolers are either quiet but not efficient enough, or demonstrate pretty decent cooling efficiency but also generate too much noise. You can get the Radeon HD 3870 cards to run a little quieter by reflashing new BIOS with “normal powerplay”, but they still heat up a lot. Even the larger fan blades of the new reference cooler on GeForce 8800 GT don’t really change anything. Of course, overclocking fans will hardly be happy about this so they inevitably face the problem of finding a worthy replacement for their default VGA cooling system..
You can ead more over here. The best VGA cooler in the test was the Arctic Accelero S1 with Turbo Module.