Comparison of GIGABYTE Radeon RX 580 Gaming 4G MI video card vs Gainward GeForce RTX 2080 SUPER Phoenix video card by specifications and benchmarks. GIGABYTE Radeon RX 580 Gaming 4G MI runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory, while video card Gainward GeForce RTX 2080 SUPER Phoenix runs at 1.650 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 185 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.