Comparison of GIGABYTE Radeon RX 6900 XT Gaming OC 16G video card vs GALAX GeForce RTX 3080 Ti HOF video card by specifications and benchmarks. GIGABYTE Radeon RX 6900 XT Gaming OC 16G runs at 1.875 GHz+ 3 % base clock speed and has 16 GB of GDDR6 memory, while video card GALAX GeForce RTX 3080 Ti HOF runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 340 W+ 13 %, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.