Comparison of ASUS Expedition Radeon RX 570 OC 8GB GDDR5 video card vs XFX Radeon RX 570 RS 4GB Black Edition Only at Best Buy video card by specifications and benchmarks. ASUS Expedition Radeon RX 570 OC 8GB GDDR5 runs at 1.168 GHz base clock speed and has 8 GB of GDDR5 memory, while video card XFX Radeon RX 570 RS 4GB Black Edition Only at Best Buy runs at 1.168 GHz base clock speed and has 4 GB of GDDR5 memory. The TDP of the first video card is 200 W+ 33 %, and the second is 200 W+ 33 %. Compare the table of benchmark results to find out which graphic card is better.