Comparison of Gainward GeForce GTX 1080 Phoenix GS video card vs ASUS Dual GeForce GTX 1660 SUPER EVO Advanced video card by specifications and benchmarks. Gainward GeForce GTX 1080 Phoenix GS runs at 1.708 GHz+ 6 % base clock speed and has 8 GB of GDDR5X memory, while video card ASUS Dual GeForce GTX 1660 SUPER EVO Advanced runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 180 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.