Comparison of MSI Radeon RX 5500 XT Gaming X 8G video card vs PowerColor Liquid Devil Radeon RX 6800 XT video card by specifications and benchmarks. MSI Radeon RX 5500 XT Gaming X 8G runs at 1.685 GHz+ 5 % base clock speed and has 8 GB of GDDR6 memory, while video card PowerColor Liquid Devil Radeon RX 6800 XT runs at 1.900 GHz+ 4 % base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 130 W, and the second is 300 W. Compare the table of benchmark results to find out which graphic card is better.