Comparison of XFX AMD Radeon RX 570 RS 4GB XXX Edition video card vs Sapphire Nitro+ Radeon RX Vega 64 video card by specifications and benchmarks. XFX AMD Radeon RX 570 RS 4GB XXX Edition runs at 1.168 GHz base clock speed and has 4 GB of GDDR5 memory, while video card Sapphire Nitro+ Radeon RX Vega 64 runs at 1.373 GHz+ 10 % 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.