AMD Radeon R9 M380 Mac Edition 's Advantages
Larger VRAM bandwidth (100.4GB/s vs 48.00GB/s)
128 additional rendering cores
AMD Radeon 550X Mobile 's Advantages
Released 2 years and 11 months late
Boost Clock has increased by 26% (1287MHz vs 1021MHz)
More VRAM (4GB vs 2GB)