Comparison of PowerColor Radeon RX 5700 ITX video card vs Gainward GeForce GTX 1660 TI Pegasus OC video card by specifications and benchmarks. PowerColor Radeon RX 5700 ITX runs at 1.465 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Gainward GeForce GTX 1660 TI Pegasus OC runs at 1.500 GHz base clock speed and has 6 GB of GDDR6 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.