Comparison of GIGABYTE Radeon RX 6800 XT Gaming 16G video card vs KFA2 GeForce GTX 1080 EX OC video card by specifications and benchmarks. GIGABYTE Radeon RX 6800 XT Gaming 16G runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card KFA2 GeForce GTX 1080 EX OC runs at 1.657 GHz+ 3 % base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 300 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.