Comparison of MSI Radeon RX 5600 XT Mech video card vs XFX Radeon RX Vega 64 Silver Fan video card by specifications and benchmarks. MSI Radeon RX 5600 XT Mech runs at 1.130 GHz base clock speed and has 6 GB of GDDR6 memory, while video card XFX Radeon RX Vega 64 Silver Fan runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 160 W, and the second is 295 W. Compare the table of benchmark results to find out which graphic card is better.