Comparison of Sapphire Radeon RX 6800 XT video card vs GIGABYTE GeForce RTX 2060 OC 6G (rev. 1.0) video card by specifications and benchmarks. Sapphire Radeon RX 6800 XT runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card GIGABYTE GeForce RTX 2060 OC 6G (rev. 1.0) runs at 1.365 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 160 W. Compare the table of benchmark results to find out which graphic card is better.