Comparison of KFA2 GeForce GTX 1060 OC 6GB video card vs KFA2 GeForce GTX 1660 Super video card by specifications and benchmarks. KFA2 GeForce GTX 1060 OC 6GB runs at 1.518 GHz+ 1 % base clock speed and has 6 GB of GDDR5 memory, while video card KFA2 GeForce GTX 1660 Super runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.