The Calibre X265/X265HM Graphics Cards feature the 2nd generation of Calibre Dual Fly Cooling System that was designed by SPARKLE. Sparkle claims this is the world's first Graphics Card with pillars traversed cooling fins technology which provides better cooling. The cooling system consists of pure aluminum thermal base, 2 high-efficient heat pipes with 6mm diameter, 2 high-efficient heat pipes with 8mm diameter, the 9 aluminum pillars traversed heat sinks and dual low speed cooling fans.
These 4 high-efficient heat pipes connect to the surface of the GPU directly, providing the cooling transfer effect of 8 heat pipes. The technique of pillars traversed can quickly bring the heat from aluminum pillars to the 8 layer cooling fins by direct contact.