Comparison of PowerColor Radeon RX Vega 64 Limited Edition video card vs MSI Radeon RX 6600 ARMOR 8G V1 video card by specifications and benchmarks. PowerColor Radeon RX Vega 64 Limited Edition runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card MSI Radeon RX 6600 ARMOR 8G V1 runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 295 W, and the second is 132 W. Compare the table of benchmark results to find out which graphic card is better.