Comparison of AMD Radeon RX 550 (Lexa) video card vs MSI Radeon RX 550 2GT LP OC video card by specifications and benchmarks. AMD Radeon RX 550 (Lexa) runs at 1.100 GHz base clock speed and has 2 GB of GDDR5 memory, while video card MSI Radeon RX 550 2GT LP OC 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.