Comparison of PowerColor Red Devil Radeon RX 6800 XT Limited Edition video card vs Colorful iGame GeForce RTX 3090 Kudan-V video card by specifications and benchmarks. PowerColor Red Devil Radeon RX 6800 XT Limited Edition runs at 1.900 GHz+ 4 % base clock speed and has 16 GB of GDDR6 memory, while video card Colorful iGame GeForce RTX 3090 Kudan-V runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 300 W, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.