Comparison of ASUS Radeon RX 550 4GB video card vs XFX Radeon RX 550 2GB Low Profile video card by specifications and benchmarks. ASUS Radeon RX 550 4GB runs at 1.100 GHz base clock speed and has 4 GB of GDDR5 memory, while video card XFX Radeon RX 550 2GB Low Profile runs at 1.100 GHz base clock speed and has 2 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.