NVIDIA GeForce GT 650M Mac Edition 's Advantages
Lower TDP (45W vs 148W)
NVIDIA GeForce GTX 980MX 's Advantages
Released 3 years and 11 months late
Boost Clock1178MHz
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (192.0GB/s vs 80.26GB/s)
1280 additional rendering cores