ATI Mobility Radeon HD 5670 Mac Edition 's Advantages
Released 1 years and 10 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (25.44GB/s vs 11.20GB/s)
392 additional rendering cores
NVIDIA GeForce 9300M GS 's Advantages
Lower TDP (13W vs 15W)