NVIDIA GeForce GTX 880M 's Advantages
More VRAM (8GB vs 4GB)
512 additional rendering cores
AMD Radeon Pro Vega 16 's Advantages
Released 4 years and 8 months late
Boost Clock has increased by 20% (1190MHz vs 993MHz)
Larger VRAM bandwidth (307.2GB/s vs 160.0GB/s)
Lower TDP (75W vs 122W)