ATI Mobility Radeon HD 5670 Mac Edition 's Advantages
Released 1 years and 4 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (25.44GB/s vs 25.34GB/s)
368 additional rendering cores
NVIDIA GeForce GT 120M Mac Edition 's Advantages
Lower TDP (14W vs 15W)