Comparison of Sapphire Nitro+ Radeon RX 6800 XT SE video card vs KFA2 GeForce GTX 1070 Ti EX video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6800 XT SE runs at 1.925 GHz+ 5 % base clock speed and has 16 GB of GDDR6 memory, while video card KFA2 GeForce GTX 1070 Ti EX runs at 1.607 GHz base clock speed and has 8 GB of GDDR5 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.