Comparison of MSI Radeon RX 5700 Mech GP video card vs Sapphire Nitro+ Radeon RX 6900 XT SE video card by specifications and benchmarks. MSI Radeon RX 5700 Mech GP runs at 1.465 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Sapphire Nitro+ Radeon RX 6900 XT SE runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 180 W, and the second is 363 W+ 21 %. Compare the table of benchmark results to find out which graphic card is better.