Comparison of ASUS ROG Strix Radeon RX 580 video card vs ZOTAC GAMING GeForce GTX 1660 SUPER AMP video card by specifications and benchmarks. ASUS ROG Strix Radeon RX 580 runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 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 185 W, and the second is 125 W. Compare the table of benchmark results to find out which graphic card is better.