Comparison of MSI Radeon RX 5700 Mech GP OC video card vs Sapphire Toxic Radeon RX 6900 XT Extreme Edition video card by specifications and benchmarks. MSI Radeon RX 5700 Mech GP OC runs at 1.515 GHz+ 3 % base clock speed and has 8 GB of GDDR6 memory, while video card Sapphire Toxic Radeon RX 6900 XT Extreme Edition 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 430 W+ 43 %. Compare the table of benchmark results to find out which graphic card is better.