Comparison of KFA2 GeForce GTX 1660 Super video card vs Gainward GeForce RTX 3070 Ti Phoenix video card by specifications and benchmarks. KFA2 GeForce GTX 1660 Super runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory, while video card Gainward GeForce RTX 3070 Ti Phoenix runs at 1.580 GHz base clock speed and has 8 GB of GDDR6X memory. The TDP of the first video card is 125 W, and the second is 290 W. Compare the table of benchmark results to find out which graphic card is better.