AMD Radeon R9 M290X Mac Edition 's Advantages
Lower TDP (80W vs 150W)
NVIDIA GeForce GTX 1080 Mobile 's Advantages
Released 1 years and 9 months late
Boost Clock has increased by 78% (1734MHz vs 975MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (320.3GB/s vs 174.7GB/s)
1536 additional rendering cores