Comparison of INNO3D GeForce GTX 1080 Twin X2 video card vs ASUS Dual GeForce GTX 1660 EVO video card by specifications and benchmarks. INNO3D GeForce GTX 1080 Twin X2 runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory, while video card ASUS Dual GeForce GTX 1660 EVO runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 180 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.