Comparison of ASUS Phoenix Radeon RX 550 4G EVO video card vs XFX Radeon RX Vega 64 Black Fan video card by specifications and benchmarks. ASUS Phoenix Radeon RX 550 4G EVO runs at 1.100 GHz base clock speed and has 4 GB of GDDR5 memory, while video card XFX Radeon RX Vega 64 Black Fan runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 50 W, and the second is 295 W. Compare the table of benchmark results to find out which graphic card is better.