NVIDIA GeForce GTX 680 's Advantages
Larger VRAM bandwidth (192.3GB/s vs 112.2GB/s)
512 additional rendering cores
NVIDIA GeForce GTX 960 's Advantages
Released 2 years and 10 months late
Boost Clock has increased by 11% (1178MHz vs 1058MHz)
Lower TDP (120W vs 195W)