As you know, graphics cards become more powerful year after year. In ever-lasting hunt for extra FPS the manufacturer not only constantly improve the graphics processors, but also increase the PCB design complexity making often as many as six or even seven phases in the graphics card voltage regulator circuitry. Of course, it increases the requirements to graphics card cooling systems that is why they are not longer just a heatsink with a fan, but acquire additional functionality. Things are much simpler when it comes to mainboard voltage regulator components, because most of them are provided with additional heatsinks with heatpipes by the manufacturer right from the start. However, as for the graphics cards, it is much more complicated to offer an alternative efficient VRM (Voltage Regulator Module) cooling, because the cards have much smaller PCBs that are overloaded with electronic components.
Most manufacturers of cooling solutions for graphics cards prefer not to address this matter at all releasing coolers that only cooler the GPU and send some airflow towards the PCB at best. However, this is absolutely not enough, and a great example here is the recently reviewed Arctic Cooling Accelero Xtreme GTX 280, which cools the GPU perfectly fine, but does nothing to improve the thermal mode of the PCB VRM components. But it is very pleasing to see that some manufacturers acknowledge the need for proper VRM cooling. One of these companies is Thermalright Inc. that has recently released an updated version of Thermalright T-Rad2 GTX and two heatsinks for the VRM components of ATI Radeon HD 4870/4890 graphics accelerators. Our today’s article will talk about these particular solutions.