Comparison of INNO3D GeForce GTX 1080 Ti iCHILL X4 Ultra video card vs INNO3D GeForce GTX 1660 Ti TWIN X2 video card by specifications and benchmarks. INNO3D GeForce GTX 1080 Ti iCHILL X4 Ultra runs at 1.607 GHz+ 9 % base clock speed and has 11 GB of GDDR5X memory, while video card INNO3D GeForce GTX 1660 Ti TWIN X2 runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 280 W+ 12 %, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.