Comparison of ZOTAC GeForce GTX 1070 AMP Extreme video card vs KFA2 GeForce RTX 2080 Ti Dual Black (1-Click OC) video card by specifications and benchmarks. ZOTAC GeForce GTX 1070 AMP Extreme runs at 1.632 GHz+ 8 % base clock speed and has 8 GB of GDDR5 memory, while video card KFA2 GeForce RTX 2080 Ti Dual Black (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 250 W+ 67 %, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.