NVIDIA GeForce GTX 780 Ti 6 GB 's Advantages
More VRAM (6GB vs 4GB)
Larger VRAM bandwidth (336.6GB/s vs 112.0GB/s)
1856 additional rendering cores
AMD Radeon RX 560 's Advantages
Boost Clock has increased by 37% (1275MHz vs 928MHz)
Lower TDP (75W vs 250W)