P104 101 Advantages
Released 2 years and 7 months late
Boost Clock has increased by 56% (1683MHz vs 1076MHz)
Lower TDP (125W vs 250W)
GeForce GTX 980 Ti Advantages
More VRAM (6GB vs 4GB)
Larger VRAM bandwidth (336.6GB/s vs 256.3GB/s)
256 additional rendering cores