Comparison of GIGABYTE AORUS GeForce GTX 1080 8G video card vs Colorful iGame GeForce GTX 1660 Ultra 6G-V video card by specifications and benchmarks. GIGABYTE AORUS GeForce GTX 1080 8G runs at 1.708 GHz+ 6 % base clock speed and has 8 GB of GDDR5X memory, while video card Colorful iGame GeForce GTX 1660 Ultra 6G-V 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.