NVIDIA GeForce GTX 870M 's Advantages
Larger VRAM bandwidth (120.0GB/s vs 96.00GB/s)
320 additional rendering cores
AMD Radeon Pro WX 4170 Mobile 's Advantages
Released 3 years late
Boost Clock has increased by 24% (1201MHz vs 967MHz)
More VRAM (4GB vs 3GB)
Lower TDP (50W vs 100W)