NVIDIA GeForce GTX 675MX Mac Edition 's Advantages
Larger VRAM bandwidth (160.0GB/s vs 72.00GB/s)
704 additional rendering cores
AMD FirePro S4000X 's Advantages
Released 1 years and 4 months late
Boost Clock775MHz
More VRAM (2GB vs 1GB)
Lower TDP (45W vs 100W)