AMD Radeon RX 560D 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (96.00GB/s vs 80.00GB/s)
512 additional rendering cores
NVIDIA T400 's Advantages
Released 3 years and 10 months late
Boost Clock has increased by 21% (1425MHz vs 1175MHz)
Lower TDP (30W vs 65W)