NVIDIA GeForce GTX TITAN X 's Advantages
More VRAM (12GB vs 8GB)
Larger VRAM bandwidth (336.6GB/s vs 224.0GB/s)
1280 additional rendering cores
AMD Radeon RX 6600 's Advantages
Released 6 years and 7 months late
Boost Clock has increased by 129% (2491MHz vs 1089MHz)
Lower TDP (132W vs 250W)