Especially since this is essentially the first bit of actual, real news about it. The few, very brief, previous murmurs about it don't count.
The GeForce GTX 760 will be the mid-range board in NVIDIA's portfolio.
Sadly, it might not be a real GeForce 700 at all, but a rebranded GTX 660 or 670.
The specifications aren't known, although the CUDA core count might be of 1,152. Quite a number of mainstream PCs. It hints at a card that can play anything at top resolution, provided multi-monitor setups aren't expected. Which is the whole point really.
Either way, we'll find out everything on June 25 (Tuesday) or June 27 (Thursday).