NVIDIA GeForce GTX 1660 Ti Seem to perform at GTX 1070 level at 279 USD
My cracked out 1070 + 1660 Ti Different SLI setup (not every game works with DSLIA enabled), mainly used for 3D and Video work but also to do weird tests : r/pcmasterrace
GTX 1660 Super vs GTX 1070 Test in 8 Games - YouTube
GeForce GTX 1660 Ti Mega Benchmark | TechSpot
GTX 1070 vs. GTX 1660 Super | Test in 9 Games - YouTube