Comparison of XFX Radeon RX 590 Fatboy 8GB video card vs ASUS AREZ Strix Radeon RX Vega 56 OC Gaming video card by specifications and benchmarks. XFX Radeon RX 590 Fatboy 8GB runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 memory, while video card ASUS AREZ Strix Radeon RX Vega 56 OC Gaming runs at 1.297 GHz+ 12 % base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 225 W, and the second is 300 W+ 43 %. Compare the table of benchmark results to find out which graphic card is better.