AMD Radeon HD 6970M Mac Edition 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (115.2GB/s vs 16.02GB/s)
576 additional rendering cores
NVIDIA GeForce 940A 's Advantages
Released 3 years and 7 months late
Boost Clock1124MHz
Lower TDP (33W vs 75W)