NVIDIA GeForce GTX 660 's Advantages
Lower TDP (140W vs 250W)
NVIDIA GeForce GTX 1080 Ti 10 GB 's Advantages
Boost Clock has increased by 63% (1683MHz vs 1032MHz)
More VRAM (10GB vs 2GB)
Larger VRAM bandwidth (440.3GB/s vs 144.2GB/s)
2240 additional rendering cores