NVIDIA GeForce GTX 880M 's Advantages
Released 2 years and 7 months late
Boost Clock993MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 115.2GB/s)
576 additional rendering cores
AMD Radeon HD 6970M Mac Edition 's Advantages
Lower TDP (75W vs 122W)