It just that they almost exhausted their reserve and the last
remaining eventual drop is 7% more processing power on the
paper at same frequencies.
Naa if i know nv correct the driver for profit is the non reference 780. Who cares about a ti or non ti when the smoke is over? It all for branding. They will select a very few for the ti with excellent perf/watt add it to the 7%. Add reference coolers that cost more than lowend gfx cards themselves and the likes. Then make a paper like launch and sell the oc non reference 780. All praise and glory to the silent reference 780ti.
Typical good marketing strategy. Give the testdrivers the car with the big engine and loads of equipment and market the price of the lesser models. Its good marketing. Amd is very good at doing it the oposite way. Send slow binned cards with lousy reference coolers.