Comparison of MSI Radeon RX 5500 XT Mech 4G video card vs Sapphire Pulse Radeon RX 590 8G G5 video card by specifications and benchmarks. MSI Radeon RX 5500 XT Mech 4G runs at 1.607 GHz base clock speed and has 4 GB of GDDR6 memory, while video card Sapphire Pulse Radeon RX 590 8G G5 runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 130 W, and the second is 225 W. Compare the table of benchmark results to find out which graphic card is better.