NVIDIA GeForce GTX 675MX Mac Edition 's Advantages
Released 5 years and 11 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (160.0GB/s vs 6.400GB/s)
1336 additional rendering cores
NVIDIA GeForce 8400M G 's Advantages
Lower TDP (10W vs 100W)