Comparison of KFA2 GeForce GTX 1080 Ti EX OC White video card vs Sapphire Toxic Radeon RX 6900 XT Air Cooled video card by specifications and benchmarks. KFA2 GeForce GTX 1080 Ti EX OC White runs at 1.531 GHz+ 3 % base clock speed and has 11 GB of GDDR5X memory, while video card Sapphire Toxic Radeon RX 6900 XT Air Cooled runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 400 W+ 33 %. Compare the table of benchmark results to find out which graphic card is better.