Comparison of XFX AMD Radeon RX 570 RS 4GB Black Edition video card vs ASUS ROG Strix Radeon RX Vega 56 OC Gaming video card by specifications and benchmarks. XFX AMD Radeon RX 570 RS 4GB Black Edition runs at 1.168 GHz base clock speed and has 4 GB of GDDR5 memory, while video card ASUS ROG 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 150 W, and the second is 300 W+ 43 %. Compare the table of benchmark results to find out which graphic card is better.