NVIDIA GeForce GTX 980 Ti 's Advantages
Boost Clock has increased by 0% (1076MHz vs 1071MHz)
More VRAM (6GB vs 2GB)
Larger VRAM bandwidth (336.6GB/s vs 96.00GB/s)
2304 additional rendering cores
AMD Radeon RX 550 512SP 's Advantages
Released 2 years and 4 months late
Lower TDP (50W vs 250W)