Comparison of Sapphire Pulse Radeon RX 570 4G G5 video card vs XFX Radeon RX Vega 64 Silver Fan video card by specifications and benchmarks. Sapphire Pulse Radeon RX 570 4G G5 runs at 1.168 GHz base clock speed and has 4 GB of GDDR5 memory, while video card XFX Radeon RX Vega 64 Silver Fan runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 150 W, and the second is 295 W. Compare the table of benchmark results to find out which graphic card is better.