Comparison of KFA2 GeForce GTX 1060 OC 6GB video card vs ASUS TUF Gaming X3 GeForce GTX 1660 OC video card by specs 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 ASUS TUF Gaming X3 GeForce GTX 1660 OC runs at 1.518 GHz+ 1 % base clock speed and has 6 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 120 W, and the second is 120 W . Compare the benchmark results to find out which video card is better.