NVIDIA GeForce GTX 780 Rev. 2 's Advantages
Larger VRAM bandwidth (288.4GB/s vs 288.0GB/s)
768 additional rendering cores
NVIDIA GeForce GTX 1660 Ti 's Advantages
Released 5 years and 5 months late
Boost Clock has increased by 96% (1770MHz vs 902MHz)
More VRAM (6GB vs 3GB)
Lower TDP (120W vs 250W)