Comparison of Gainward GeForce GTX 1660 TI Pegasus OC video card vs NVIDIA GeForce RTX 2080 SUPER Founders Edition video card by specifications and benchmarks. Gainward GeForce GTX 1660 TI Pegasus OC runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 memory, while video card NVIDIA GeForce RTX 2080 SUPER Founders Edition runs at 1.650 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 120 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.