NVIDIA GeForce GT 440 Mac Edition 's Advantages
Released 2 years and 6 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (21.34GB/s vs 12.80GB/s)
80 additional rendering cores
NVIDIA GeForce 9400 GT PCI 's Advantages
Lower TDP (50W vs 65W)