NVIDIA GeForce GTX 675MX Mac Edition 's Advantages
Larger VRAM bandwidth (160.0GB/s vs 80.00GB/s)
448 additional rendering cores
NVIDIA GeForce MX450 25W 's Advantages
Released 7 years and 4 months late
Boost Clock930MHz
More VRAM (2GB vs 1GB)
Lower TDP (25W vs 100W)