EVGA’s GTX 680 Superclocked Signature 2 graphics card (we call it GTX 680 SC SIG 2) is factory overclocked, but the Signature 2 cooler is what makes this card to stand out from the pack. EVGA uses Signature 2 branding for all in-house designed coolers with two fans. Depending on the graphics card series, the Signature 2 cooler can differ in size and thus in cooling performance. Its main purpose is to ensure reduced noise and better cooling for the GPU compared to the reference coolers.
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