Comparison of GALAX GeForce GTX 1060 Gamer OC 3GB video card vs Colorful iGame GeForce GTX 1660 Ultra 6G-V video card by specifications and benchmarks. GALAX GeForce GTX 1060 Gamer OC 3GB runs at 1.531 GHz+ 2 % base clock speed and has 3 GB of GDDR5 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 120 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.