Comparison of PowerColor Radeon RX 6800 video card vs KFA2 GeForce RTX 2080 SUPER EX (1-Click OC) video card by specifications and benchmarks. PowerColor Radeon RX 6800 runs at 1.700 GHz base clock speed and has 16 GB of GDDR6 memory, while video card KFA2 GeForce RTX 2080 SUPER EX (1-Click OC) runs at 1.650 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.