AMD Radeon HD 8870M 's Advantages
Larger VRAM bandwidth (72.00GB/s vs 16.00GB/s)
320 additional rendering cores
AMD Radeon R5 M430 's Advantages
Released 2 years and 9 months late
Boost Clock has increased by 10% (855MHz vs 775MHz)
More VRAM (4GB vs 2GB)