Comparison of GIGABYTE GeForce GTX 1080 Ti Gaming 11G video card vs ASUS Phoenix GeForce GTX 1660 video card by specifications and benchmarks. GIGABYTE GeForce GTX 1080 Ti Gaming 11G runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory, while video card ASUS Phoenix GeForce GTX 1660 runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 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.