Comparison of Sapphire Nitro+ Radeon RX 5500 XT 8G SE video card vs ZOTAC GAMING GeForce GTX 1660 SUPER AMP video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 5500 XT 8G SE runs at 1.607 GHz 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 135 W+ 4 %, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.