NVIDIA GeForce RTX 3070 Ti 16 GB 's Advantages
More VRAM (16GB vs 6GB)
Larger VRAM bandwidth (608.3GB/s vs 192.1GB/s)
4736 additional rendering cores
NVIDIA GeForce GTX 1660 's Advantages
Boost Clock has increased by 1% (1785MHz vs 1770MHz)
Lower TDP (120W vs 290W)