NVIDIA GeForce GTX 660 's Advantages
Larger VRAM bandwidth (144.2GB/s vs 112.2GB/s)
NVIDIA GeForce GTX 960 's Advantages
Released 2 years and 4 months late
Boost Clock has increased by 14% (1178MHz vs 1032MHz)
64 additional rendering cores
Lower TDP (120W vs 140W)