AMD Radeon R5 M420 's Advantages
Released 2 years and 2 months late
More VRAM (4GB vs 3GB)
NVIDIA GeForce GTX 870M 's Advantages
Boost Clock has increased by 14% (967MHz vs 850MHz)
Larger VRAM bandwidth (120.0GB/s vs 16.00GB/s)
1024 additional rendering cores