NVIDIA GeForce GTX TITAN Z 's Advantages
More VRAM (6GB vs 4GB)
Larger VRAM bandwidth (336.0GB/s vs 112.0GB/s)
1856 additional rendering cores
AMD Radeon RX 560 's Advantages
Released 2 years and 11 months late
Boost Clock has increased by 46% (1275MHz vs 876MHz)
Lower TDP (75W vs 375W)