Comparison of Sapphire Pulse Radeon RX 580 4G G5 video card vs PowerColor Radeon RX Vega 56 Red Dragon video card by specifications and benchmarks. Sapphire Pulse Radeon RX 580 4G G5 runs at 1.257 GHz base clock speed and has 4 GB of GDDR5 memory, while video card PowerColor Radeon RX Vega 56 Red Dragon runs at 1.177 GHz+ 2 % base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 185 W, and the second is 210 W. Compare the table of benchmark results to find out which graphic card is better.