AMD Radeon R9 M390 Mac Edition 's Advantages
Lower TDP (80W vs 250W)
AMD Radeon Pro Vega 64X 's Advantages
Released 3 years and 10 months late
Boost Clock1468MHz
More VRAM (16GB vs 2GB)
Larger VRAM bandwidth (512.0GB/s vs 174.7GB/s)
3072 additional rendering cores