Comparison of KFA2 GeForce GTX 1070 EX Black Edition video card vs GALAX GeForce RTX 2080 Ti SG (1-Click OC) video card by specifications and benchmarks. KFA2 GeForce GTX 1070 EX Black Edition runs at 1.518 GHz+ 1 % base clock speed and has 8 GB of GDDR5 memory, while video card GALAX GeForce RTX 2080 Ti SG (1-Click OC) runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 150 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.