Comparison of XFX Radeon RX 550 4GB Double Dissipation video card vs ASUS Phoenix Radeon RX 550 4G EVO video card by specifications and benchmarks. XFX Radeon RX 550 4GB Double Dissipation runs at 1.019 GHz base clock speed and has 4 GB of GDDR5 memory, while video card ASUS Phoenix Radeon RX 550 4G EVO runs at 1.100 GHz base clock speed and has 4 GB of GDDR5 memory. The TDP of the first video card is 50 W, and the second is 50 W. Compare the table of benchmark results to find out which graphic card is better.