NVIDIA GeForce GTX 1080 Ti 10 GB 's Advantages
Boost Clock has increased by 38% (1683MHz vs 1218MHz)
More VRAM (10GB vs 2GB)
Larger VRAM bandwidth (440.3GB/s vs 112.0GB/s)
2688 additional rendering cores
AMD Radeon 550X 's Advantages
Lower TDP (50W vs 250W)