AMD Radeon R9 M290X Mac Edition 's Advantages
Larger VRAM bandwidth (174.7GB/s vs 109.4GB/s)
128 additional rendering cores
AMD Radeon RX 560 Mobile 's Advantages
Released 2 years and 2 months late
Boost Clock has increased by 6% (1032MHz vs 975MHz)
More VRAM (4GB vs 2GB)
Lower TDP (55W vs 80W)