Comparison of KFA2 GeForce GTX 1060 OC 6GB GDDR5X video card vs EVGA GeForce GTX 1660 XC ULTRA BLACK GAMING video card by specs and benchmarks. KFA2 GeForce GTX 1060 OC 6GB GDDR5X runs at 1.518 GHz+ 1 % base clock speed and has 6 GB of GDDR5X memory, while video card EVGA GeForce GTX 1660 XC ULTRA BLACK GAMING 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.