Comparison of KFA2 GeForce GTX 1070 EX video card vs ZOTAC GAMING GeForce RTX 2060 Twin Fan video card by specifications and benchmarks. KFA2 GeForce GTX 1070 EX runs at 1.518 GHz+ 1 % base clock speed and has 8 GB of GDDR5 memory, while video card ZOTAC GAMING GeForce RTX 2060 Twin Fan runs at 1.365 GHz base clock speed and has 6 GB of GDDR6 memory. The TDP of the first video card is 150 W, and the second is 160 W. Compare the table of benchmark results to find out which graphic card is better.