AMD Radeon RX 580 2048SP 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.0GB/s vs 80.00GB/s)
1664 additional rendering cores
NVIDIA T400 's Advantages
Released 2 years and 7 months late
Boost Clock has increased by 11% (1425MHz vs 1284MHz)
Lower TDP (30W vs 150W)