NVIDIA GeForce GTX 880M 's Advantages
Released 6 years and 10 months late
Boost Clock993MHz
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (160.0GB/s vs 22.40GB/s)
1504 additional rendering cores
NVIDIA GeForce 8600M GT 's Advantages
Lower TDP (20W vs 122W)