AMD Radeon R9 M295X Mac Edition 's Advantages
Released 2 years and 4 months late
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (174.3GB/s vs 80.26GB/s)
1664 additional rendering cores
NVIDIA GeForce GT 650M Mac Edition 's Advantages
Lower TDP (45W vs 250W)