NVIDIA GeForce 8400 GS PCI Rev. 2 's Advantages
Lower TDP (40W vs 108W)
ATI Radeon HD 5770 Mac Edition 's Advantages
Released 3 years and 3 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (76.48GB/s vs 8.000GB/s)
784 additional rendering cores