GTX 780 is possibly Titan LE and releasing the 23rd, according to leaks.

The Geforce GTX Titan is based off the K20 Tesla units of nVidia's high end computing cards.  Titan is in fact slightly slower than a Tesla due to few key laser cuts to die.  More than likely, these chips did not qualify as full Tesla cards, but were not complete failures.  Not broken but not fully yielding Teslas.  The GK110 is a powerful chip and frankly it looks like the GTX 780 is going to be the Titan LE, also a  GK110, but again a little weaker than a Titan.

GTX 780 also is rumored to release May 23rd, followed in one week by the GTX 770 which is a rehash of the GTX 680 design.




http://videocardz.com/41239/nvidia-geforce-gtx-780-to-be-released-on-may-23rd
http://www.fudzilla.com/home/item/31265-geforce-gtx-780-coming-on-may-23rd
http://www.sweclockers.com/nyhet/16955-geforce-gtx-780-for-1080p-120-hz-gaming