Comparison of PowerColor Radeon RX 5500 XT Red Dragon video card vs ZOTAC GAMING GeForce GTX 1660 SUPER AMP video card by specifications and benchmarks. PowerColor Radeon RX 5500 XT Red Dragon runs at 1.685 GHz+ 5 % base clock speed and has 8 GB of GDDR6 memory, while video card ZOTAC GAMING GeForce GTX 1660 SUPER AMP runs at 1.530 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 130 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.