Comparison of MSI Radeon RX 580 Gaming X 4G video card vs ASUS ROG Strix Radeon RX 6600 XT OC video card by specifications and benchmarks. MSI Radeon RX 580 Gaming X 4G runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory, while video card ASUS ROG Strix Radeon RX 6600 XT OC runs at 2.000 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 185 W, and the second is 160 W. Compare the table of benchmark results to find out which graphic card is better.