Comparison of Sapphire Radeon RX 5700 8G video card vs MSI GeForce RTX 2080 Ti Lightning Z video card by specifications and benchmarks. Sapphire Radeon RX 5700 8G runs at 1.465 GHz base clock speed and has 8 GB of GDDR6 memory, while video card MSI GeForce RTX 2080 Ti Lightning Z runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 180 W, and the second is 350 W+ 40 %. Compare the table of benchmark results to find out which graphic card is better.