NVIDIA GeForce 9200M GS GDDR3 's Advantages
Lower TDP (13W vs 80W)
AMD Radeon R9 M390 Mac Edition 's Advantages
Released 6 years and 11 months late
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (174.7GB/s vs 11.23GB/s)
1016 additional rendering cores