Comparison of ASUS ROG Strix Radeon RX 5500 XT OC video card vs GIGABYTE Radeon RX 580 Gaming 4G video card by specifications and benchmarks. ASUS ROG Strix Radeon RX 5500 XT OC runs at 1.607 GHz base clock speed and has 8 GB of GDDR6 memory, while video card GIGABYTE Radeon RX 580 Gaming 4G runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory. The TDP of the first video card is 130 W, and the second is 185 W. Compare the table of benchmark results to find out which graphic card is better.