NVIDIA GeForce GTX 1080 's Advantages
Released 3 years and 8 months late
Boost Clock has increased by 68% (1733MHz vs 1032MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (320.3GB/s vs 144.2GB/s)
1600 additional rendering cores
NVIDIA GeForce GTX 660 's Advantages
Lower TDP (140W vs 180W)