Comparison of PowerColor Radeon RX 6800 Fighter video card vs EVGA GeForce RTX 3090 XC3 BLACK GAMING video card by specifications and benchmarks. PowerColor Radeon RX 6800 Fighter runs at 1.775 GHz+ 4 % base clock speed and has 16 GB of GDDR6 memory, while video card EVGA GeForce RTX 3090 XC3 BLACK GAMING runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 250 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.