AMD Radeon HD 7670A 's Advantages
Released 1 years and 9 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (64.00GB/s vs 25.44GB/s)
80 additional rendering cores
ATI Mobility Radeon HD 5670 Mac Edition 's Advantages
Lower TDP (15W vs 45W)