Comparison of GIGABYTE Radeon RX 570 Gaming 4G MI video card vs Sapphire Pulse Radeon RX 590 8G G5 video card by specifications and benchmarks. GIGABYTE Radeon RX 570 Gaming 4G MI runs at 1.178 GHz+ 1 % base clock speed and has 4 GB of GDDR5 memory, while video card Sapphire Pulse Radeon RX 590 8G G5 runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 150 W, and the second is 225 W. Compare the table of benchmark results to find out which graphic card is better.