Nvidia confirms the GTX 580

[spursindonesia]

a dual reworked GT460 could pull the specs you typed spurindonesia right ???

Nope, not a dual chip card, but a single chip developed from GF104 mArch, expanded 50% upward in execution units count to be exactly, taking advantage of GF104 gaming focused mArch design (much slower DP throughput, but much faster SP throughput with double Special Functioning Units & TMUs per SIMD array that what were important for gaming purpose).

A dual chip card using full fledged GF104/114 has lost meaning since AMD is determined to built Cayman based dual GPU card (Antilles). It doesn't serve you any good if your dual chip, flagship card is totally uncompetitive against its peer/direct competitor. The king of the hill slot belongs to AMD in this 40 nm round with Antilles, and i think nVidia knows it. GTX 580 still has a (long) shot against Cayman XT, but dual GF104/114 (GTX 595 ?) card will fall flat on its rear if nVidia ever dare to put it against Antilles. UNLESS, nVidia knew that GTX 580 is slower than Cayman XT, while GTX 595 could match or beat AMD's best single chip in some cases. Then GTX 595 can serve its purpose as fanboi epeen edition card.