ATI Radeon HD 5770 Mac Edition 's Advantages
Lower TDP (108W vs 250W)
NVIDIA GeForce GTX 780 6 GB 's Advantages
Released 3 years and 2 months late
Boost Clock902MHz
More VRAM (6GB vs 1024GB)
Larger VRAM bandwidth (288.4GB/s vs 76.48GB/s)
1504 additional rendering cores