NVIDIA NVS 4200M 's Advantages
Lower TDP (25W vs 80W)
AMD Radeon R9 M290X Mac Edition 's Advantages
Released 3 years and 9 months late
Boost Clock975MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (174.7GB/s vs 12.80GB/s)
976 additional rendering cores