NVIDIA GeForce GTX 870M 's Advantages
Lower TDP (100W vs 120W)
AMD Radeon RX Vega 56 Mobile 's Advantages
Released 4 years and 3 months late
Boost Clock has increased by 35% (1301MHz vs 967MHz)
More VRAM (8GB vs 3GB)
Larger VRAM bandwidth (409.6GB/s vs 120.0GB/s)
2240 additional rendering cores