Comparison of GIGABYTE GeForce GTX 1060 WINDFORCE OC D5X 6G GDDR5X video card vs Gainward GeForce GTX 1660 SUPER Ghost OC video card by specifications and benchmarks. GIGABYTE GeForce GTX 1060 WINDFORCE OC D5X 6G GDDR5X runs at 1.506 GHz base clock speed and has 6 GB of GDDR5X memory, while video card Gainward GeForce GTX 1660 SUPER Ghost OC runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.