ZOTAC GTX680 2GB 'Kepler' Review Vortez
 

Kepler is the successor to the Fermi range of graphics cards. It is touted as the world’s fastest GPU but NVIDIA also suggest it is the world’s most power efficient - a bold claim indeed considering how efficient (and fast) the HD7970 is. Speed and power however are not all that Kepler has in store.

http://www.vortez.net/review.php?id=527