NVIDIA GeForce GTX 1060 6 GB 's Advantages
More VRAM (6GB vs 4GB)
Larger VRAM bandwidth (192.2GB/s vs 128.0GB/s)
512 additional rendering cores
AMD Radeon RX 6400 's Advantages
Released 5 years and 6 months late
Boost Clock has increased by 36% (2321MHz vs 1709MHz)
Lower TDP (53W vs 120W)