NVIDIA GeForce GTX 260M 's Advantages
Lower TDP (65W vs 100W)
NVIDIA GeForce GTX 680M 's Advantages
Released 3 years and 3 months late
Boost Clock758MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (115.2GB/s vs 60.80GB/s)
1232 additional rendering cores