Comparison of MSI Radeon RX 6700 XT GAMING X 12G video card vs Sapphire Pulse Radeon RX Vega 56 video card by specifications and benchmarks. MSI Radeon RX 6700 XT GAMING X 12G runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card Sapphire Pulse Radeon RX Vega 56 runs at 1.208 GHz+ 4 % base clock speed and has 8 GB of HBM2 memory. The TDP of the first video card is 230 W, and the second is 280 W+ 33 %. Compare the table of benchmark results to find out which graphic card is better.