Comparison of Sapphire NITRO+ Radeon RX 580 4G G5 video card vs ASRock AMD Phantom Gaming X Radeon RX 570 8G OC video card by specifications and benchmarks. Sapphire NITRO+ Radeon RX 580 4G G5 runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory, while video card ASRock AMD Phantom Gaming X Radeon RX 570 8G OC runs at 1.168 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 235 W+ 27 %, and the second is 150 W. Compare the table of benchmark results to find out which graphic card is better.