ATI Radeon HD 3870 Mac Edition 's Advantages
Lower TDP (106W vs 250W)
NVIDIA GeForce GTX 780 Ti 's Advantages
Released 5 years and 5 months late
Boost Clock928MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (336.6GB/s vs 72.06GB/s)
2560 additional rendering cores