NVIDIA T1000 8 GB 's Advantages
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (160.0GB/s vs 128.0GB/s)
128 additional rendering cores
Lower TDP (50W vs 53W)
AMD Radeon RX 6400 's Advantages
Released 8 months late
Boost Clock has increased by 66% (2321MHz vs 1395MHz)