Comparison of Sapphire Pulse Radeon RX 6800 XT video card vs MSI GeForce RTX 2080 Sea Hawk X video card by specifications and benchmarks. Sapphire Pulse Radeon RX 6800 XT runs at 1.875 GHz+ 3 % base clock speed and has 16 GB of GDDR6 memory, while video card MSI GeForce RTX 2080 Sea Hawk X runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 245 W+ 14 %. Compare the table of benchmark results to find out which graphic card is better.