AMD Radeon Pro Vega 56 's Advantages
Larger VRAM bandwidth (402.4GB/s vs 352.0GB/s)
1280 additional rendering cores
NVIDIA GeForce RTX 2070 Mobile Refresh 's Advantages
Released 2 years and 7 months late
Boost Clock has increased by 16% (1455MHz vs 1250MHz)
Lower TDP (115W vs 210W)