A leaked specification sheet for the upcoming Geforce GTX 780 Ti shows that it is after all configured just a bit above the GTX Titan and should end up faster, at least on paper.
The leak comes from Galaxy branded GTX 780 Ti specification sheet and includes details like the GK110 GPU with 2880 CUDA cores, 48 ROPs, 240 TMUs as well as 384-bit memory interface with 3GB of GDDR5 memory. The leaked specification of, what appears to be a reference based GTX 780 Ti graphics card, include 876MHz base GPU clock, 928MHz GPU Boost while memory ended up clocked at 1750MHz (7.0GHz effective).
The new GTX 780 Ti should have no problems to be faster than the R9 290X considering that it should end up faster than the GTX Titan as well. While it has half the memory of the GTX Titan, the memory on the GTX 780 Ti is also faster.
Source:
via Techpowerup.com.