ATI Radeon HD 4870 Mac Edition 's Advantages
Lower TDP (150W vs 345W)
AMD Radeon RX Vega 64 Liquid Cooling 's Advantages
Released 8 years and 7 months late
Boost Clock1677MHz
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (483.8GB/s vs 108.8GB/s)
3296 additional rendering cores