Comparison of EVGA GeForce GTX 1660 Ti XC OC video card vs Colorful GeForce RTX 3070 Ti NB 8G-V video card by specifications and benchmarks. EVGA GeForce GTX 1660 Ti XC OC runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card Colorful GeForce RTX 3070 Ti NB 8G-V runs at 1.580 GHz base clock speed and has 8 GB of GDDR6X memory. The TDP of the first video card is 120 W, and the second is 290 W. Compare the table of benchmark results to find out which graphic card is better.