ATI Radeon HD 3870 Mac Edition 's Advantages
Lower TDP (106W vs 110W)
NVIDIA GeForce GTX 650 Ti 's Advantages
Released 4 years and 4 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (86.40GB/s vs 72.06GB/s)
448 additional rendering cores