GeForce GTX 680 EVGA SC Signature Edition is a Special Edition of the powerful GeForce GTX 680. See the standard version for more information about it.
Compared to the standard version, GeForce GTX 680 EVGA SC Edition features increased core and memory clocks, from 1006MHz to 1084MHz and from 6008MHz to 6208MHz, respectively, which will undoubtedly give a performance boost, increasing the Textel/Pixel Fill Rate but also increasing the Memory Bandwidth. The "Boost Clock" was also increased and can now attain some whooping 1150MHz.
Benchmarks indicate a 7% boost in performance when compared to the standard GeForce GTX 680.