Comparison of PowerColor Radeon RX 5600 XT ITX video card vs KFA2 GeForce GTX 1660 SUPER EX (1-Click OC) video card by specifications and benchmarks. PowerColor Radeon RX 5600 XT ITX runs at 1.130 GHz base clock speed and has 6 GB of GDDR6 memory, while video card KFA2 GeForce GTX 1660 SUPER EX (1-Click OC) runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 160 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.