ATI Radeon HD 3870 Mac Edition 's Advantages
Larger VRAM bandwidth (72.06GB/s vs 14.40GB/s)
NVIDIA GeForce GT 630 Rev. 2 PCIe x8 's Advantages
Released 4 years and 11 months late
More VRAM (2GB vs 512GB)
64 additional rendering cores
Lower TDP (25W vs 106W)