Comparison of PowerColor Radeon RX 6800 Red Devil video card vs MSI GeForce RTX 2080 Duke 8G OC video card by specifications and benchmarks. PowerColor Radeon RX 6800 Red Devil runs at 1.850 GHz+ 9 % base clock speed and has 16 GB of GDDR6 memory, while video card MSI GeForce RTX 2080 Duke 8G OC runs at 1.515 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 245 W+ 14 %. Compare the table of benchmark results to find out which graphic card is better.