Comparison of Gainward GeForce GTX 1070 Ti Phoenix GS video card vs KFA2 GeForce GTX 1660 SUPER EX White (1-Click OC) video card by specifications and benchmarks. Gainward GeForce GTX 1070 Ti Phoenix GS runs at 1.708 GHz+ 6 % base clock speed and has 8 GB of GDDR5 memory, while video card KFA2 GeForce GTX 1660 SUPER EX White (1-Click OC) runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 180 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.