Comparison of ASUS Radeon RX 550 2GB video card vs XFX Radeon RX 550 4GB Double Dissipation video card by specs and benchmarks. ASUS Radeon RX 550 2GB runs at 1.100 GHz base clock speed and has 2 GB of GDDR5 memory, while video card XFX Radeon RX 550 4GB Double Dissipation runs at 1.100 GHz base clock speed and has 4 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 50 W, and the second is 50 W . Compare the benchmark results to find out which video card is better.