A number of weeks ago we already came across several technical specifications for the GTX 760 Ti, 770, and 780. The details that we figured out were that the GTX 780 was basically a GTX Titan with slightly fewer features, and that the GTX 760 Ti and the GTX 770 were essentially based on the GTX 670 and GTX 680, respectively.
|Header Cell - Column 0||GPU||Cuda Cores||TMUs||ROPs||Memory||Memory Interface|
|GTX 780||GK110||2,496||208||40||3 GB||320-bit|
|GTX 770||GK104-425||1,536||128||32||2 GB||256-bit|
|GTX 760 Ti||GK104-225||1,344||112||32||2 GB||256-bit|
Now though, while the specifications remain the same, the folks over at Chiphell leaked some images of the GTX 780 and GTX 770. What can be seen from them is that the GTX 780 and the GTX 770 will carry the same cooler as found on the GTX Titan.
The GTX 780 is expected to launch May 23, 2013; the GTX 770 is slated for May 30, 2013. The GTX 760 Ti will launch during Computex.
I didn't follow you. The stock 680 had 2GB and the 780 is rumored to have 3GB. Where did you see 5GB? That is a large bump in cuda cores for the 780 has me wondering if that is correct. If it is correct the 780 will be very close to Titan. The 780's 320 bit bus width may make perform on par to Titan since the 780 is rumored to have 8% less cuda cores than Titans 2688 cuda cores.
And so on.