Comparison of ASUS Dual Radeon RX 580 OC 4G video card vs KFA2 GeForce RTX 2080 OC video card by specifications and benchmarks. ASUS Dual Radeon RX 580 OC 4G runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory, while video card KFA2 GeForce RTX 2080 OC runs at 1.515 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 215 W. Compare the table of benchmark results to find out which graphic card is better.