Comparison of PowerColor Red Devil Radeon RX 6900 XT Ultimate video card vs INNO3D GeForce RTX 3080 12GB iCHILL X4 LHR video card by specifications and benchmarks. PowerColor Red Devil Radeon RX 6900 XT Ultimate runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card INNO3D GeForce RTX 3080 12GB iCHILL X4 LHR runs at 1.260 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 300 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.