Comparison of Palit GeForce GTX 1080 Founders Edition video card vs Gainward GeForce GTX 1660 Pegasus OC video card by specifications and benchmarks. Palit GeForce GTX 1080 Founders Edition runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory, while video card Gainward GeForce GTX 1660 Pegasus OC 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.