Comparison of PowerColor Radeon RX 6800 XT video card vs GIGABYTE GeForce RTX 3080 Ti Vision OC 12G video card by specifications and benchmarks. PowerColor Radeon RX 6800 XT runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card GIGABYTE GeForce RTX 3080 Ti Vision OC 12G runs at 1.365 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.