Comparison of MSI Radeon RX 5500 XT Mech 4G video card vs PowerColor Radeon RX Vega 64 Limited Edition 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 PowerColor Radeon RX Vega 64 Limited Edition runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 130 W, and the second is 295 W. Compare the table of benchmark results to find out which graphic card is better.