Comparison of ASUS TUF Gaming GeForce GTX 1660 OC video card vs Gigabyte GeForce RTX 2060 Windforce OC 12G video card by specifications and benchmarks. ASUS TUF Gaming GeForce GTX 1660 OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory, while video card Gigabyte GeForce RTX 2060 Windforce OC 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.