NVIDIA GeForce GTX 680M 's Advantages
Released 2 years and 4 months late
Boost Clock758MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (115.2GB/s vs 64.00GB/s)
1216 additional rendering cores
NVIDIA GeForce GTX 285M 's Advantages
Lower TDP (75W vs 100W)