Comparison of Sapphire Radeon RX 5700 XT 8G video card vs MSI Radeon RX 6900 XT Gaming Trio Plus 16G video card by specifications and benchmarks. Sapphire Radeon RX 5700 XT 8G runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory, while video card MSI Radeon RX 6900 XT Gaming Trio Plus 16G runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 225 W, and the second is 300 W. Compare the table of benchmark results to find out which graphic card is better.