Rumors point to the GTX 780 launching next week.
Near the beginning of the month , news and rumor site Fudzilla reported that Nvidia was planning to launch its GeForce GTX 780 graphics card on May 23 at 6:00 AM PDT. That date is now only a week away, and so far, things are looking good. Withing naming anyone, Fudzilla says it's now heard from "multiple sources" that the May 23 launch date is accurate, at which time Nvidia's hardware partners will debut reference clocked cards.
As with most video cards these days, overclocked versions will inevitably pop up, though most of them will come out "several weeks" after the initial launch.
Reference cards are said to be using a GeForce Titan cooler quality since it's a high quality design. You may even spot overclocked cards using the same cooler, though vendors typically like to slap on their own cooling solutions, which often do a better job than reference at whisking away heat and run quieter to boot.
According to Fudzilla , the GTX 780 part based on reference specs should sell for around 500 Euros. That's about $645 USD, though PC component pricing doesn't always follow a straight currency conversion from one market to the next.