Comparison of ASUS ROG Strix GeForce GTX 1660 SUPER OC video card vs Gainward GeForce RTX 2060 Phoenix GS video card by specifications and benchmarks. ASUS ROG Strix GeForce GTX 1660 SUPER OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory, while video card Gainward GeForce RTX 2060 Phoenix GS runs at 1.365 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 125 W, and the second is 190 W+ 19 %. Compare the table of benchmark results to find out which graphic card is better.