Comparison of GIGABYTE Radeon RX 580 Gaming 4G MI video card vs KFA2 GeForce RTX 2080 Ti OC 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 KFA2 GeForce RTX 2080 Ti OC runs at 1.350 GHz base clock speed and has 11 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.