AMD Radeon R5 M420 's Advantages
Released 4 years and 4 months late
Boost Clock has increased by 55% (850MHz vs 550MHz)
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (16.00GB/s vs 14.40GB/s)
AMD Radeon HD 7550M 's Advantages
80 additional rendering cores