NVIDIA GeForce GTX 775M Mac Edition 's Advantages
Released 5 years and 5 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (160.0GB/s vs 54.40GB/s)
1024 additional rendering cores
ATI Mobility Radeon HD 3870 's Advantages
Lower TDP (55W vs 100W)