Comparison of MSI GeForce GTX 1060 6G OC video card vs Gainward GeForce GTX 1660 SUPER Pegasus video card by specifications and benchmarks. MSI GeForce GTX 1060 6G OC runs at 1.544 GHz+ 3 % base clock speed and has 6 GB of GDDR5 memory, while video card Gainward GeForce GTX 1660 SUPER Pegasus 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.