the launch of the Nvidia's GTX 580, Sparkle has decided to roll out two versions, the reference card and the custom cooled Calibre series X580 card, which is the first custom air-cooled card on the market.
The reference model works at stock 772MHz for the GPU, 1544MHz for Shaders and 4008MHz for memory, while the Calibre X580 got overclocked to 810MHz for the GPU, 1620MHz for Shaders and 4032MHz for memory. The reference cooler on the Calibre X580 card got replaced with Arctic Cooling Accelero Xtreme cooler with three fans and bunch of copper heatpipes.
Sparkle claims that despite a quite hefty factory overclock, the Calibre X580 runs much cooler and quieter than the reference card, and the three-year warranty is quite impressive as well.
Unfortunately, Sparkle didn't shed any details regarding the price or the availability date of its Calibre X580 card.