NVIDIA GeForce GTX 980 Ti 's Advantages
More VRAM (6GB vs 4GB)
Larger VRAM bandwidth (336.6GB/s vs 224.0GB/s)
768 additional rendering cores
AMD Radeon RX 580 2048SP 's Advantages
Released 3 years and 4 months late
Boost Clock has increased by 19% (1284MHz vs 1076MHz)
Lower TDP (150W vs 250W)