Comparison of ASUS ROG Strix GeForce GTX 1660 TI OC video card vs Gigabyte GeForce RTX 2060 D6 12G video card by specifications and benchmarks. ASUS ROG Strix GeForce GTX 1660 TI OC runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card Gigabyte GeForce RTX 2060 D6 12G runs at 1.470 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 185 W. Compare the table of benchmark results to find out which graphic card is better.