NVIDIA GeForce GTX 780 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (288.4GB/s vs 112.2GB/s)
1280 additional rendering cores
NVIDIA GeForce GTX 960 's Advantages
Released 1 years and 8 months late
Boost Clock has increased by 31% (1178MHz vs 902MHz)
Lower TDP (120W vs 250W)