Comparison of AMD Radeon RX 6800 video card vs Gainward GeForce RTX 2060 Phoenix video card by specifications and benchmarks. AMD Radeon RX 6800 runs at 1.700 GHz base clock speed and has 16 GB of GDDR6 memory, while video card Gainward GeForce RTX 2060 Phoenix runs at 1.365 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 160 W. Compare the table of benchmark results to find out which graphic card is better.