AMD Radeon HD 6770M Mac Edition 's Advantages
Released 2 years and 7 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (57.60GB/s vs 11.23GB/s)
472 additional rendering cores
NVIDIA GeForce 9200M GS GDDR3 's Advantages
Lower TDP (13W vs 35W)