Comparison of GIGABYTE AORUS GeForce GTX 1080 Ti Xtreme Edition 11G video card vs GALAX GeForce GTX 1660 Prodigy video card by specifications and benchmarks. GIGABYTE AORUS GeForce GTX 1080 Ti Xtreme Edition 11G runs at 1.607 GHz+ 9 % base clock speed and has 11 GB of GDDR5X memory, while video card GALAX GeForce GTX 1660 Prodigy 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.