AMD Radeon RX 470D 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (211.2GB/s vs 80.00GB/s)
1408 additional rendering cores
NVIDIA T400 's Advantages
Released 4 years and 7 months late
Boost Clock has increased by 18% (1425MHz vs 1206MHz)
Lower TDP (30W vs 120W)