NVIDIA GeForce GTX 1080 Ti 12 GB 's Advantages
More VRAM (12GB vs 8GB)
Larger VRAM bandwidth (528.4GB/s vs 280.3GB/s)
1152 additional rendering cores
AMD Radeon RX 6650 XT 's Advantages
Boost Clock has increased by 58% (2635MHz vs 1670MHz)
Lower TDP (176W vs 250W)