NVIDIA GeForce GTX 680M 's Advantages
Released 4 years and 4 months late
Boost Clock758MHz
More VRAM (4GB vs 256GB)
Larger VRAM bandwidth (115.2GB/s vs 9.600GB/s)
1328 additional rendering cores
NVIDIA GeForce 9300M G 's Advantages
Lower TDP (13W vs 100W)