Comparison of Gainward GeForce GTX 1660 TI Pegasus OC video card vs GIGABYTE GeForce RTX 3080 TURBO 10G 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 GIGABYTE GeForce RTX 3080 TURBO 10G runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory. The TDP of the first video card is 120 W, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.