Comparison of ASUS Dual series GeForce GTX 1060 OC edition 3GB video card vs KFA2 GeForce GTX 1660 EX (1-Click OC) video card by specs and benchmarks. ASUS Dual series GeForce GTX 1060 OC edition 3GB runs at 1.569 GHz+ 4 % base clock speed and has 3 GB of GDDR5 memory, while video card KFA2 GeForce GTX 1660 EX (1-Click OC) runs at 1.569 GHz+ 4 % 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.