AMD Radeon R9 M390 Mac Edition 's Advantages
Larger VRAM bandwidth (174.7GB/s vs 96.00GB/s)
512 additional rendering cores
AMD Radeon E9175 PCIe 's Advantages
Released 2 years and 5 months late
Boost Clock1219MHz
More VRAM (4GB vs 2GB)
Lower TDP (50W vs 80W)