NVIDIA GeForce GTX 680M 's Advantages
Lower TDP (100W vs 120W)
NVIDIA GeForce GTX 1070 Mobile 's Advantages
Released 4 years and 2 months late
Boost Clock has increased by 117% (1645MHz vs 758MHz)
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (256.3GB/s vs 115.2GB/s)
704 additional rendering cores