Comparison of XFX Radeon RX 5700 XT Thicc II Ultra video card vs ASUS ROG Strix Radeon RX 580 OC video card by specifications and benchmarks. XFX Radeon RX 5700 XT Thicc II Ultra runs at 1.730 GHz+ 8 % base clock speed and has 8 GB of GDDR6 memory, while video card ASUS ROG Strix Radeon RX 580 OC runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 225 W, and the second is 185 W. Compare the table of benchmark results to find out which graphic card is better.