Comparison of ZOTAC GeForce GTX 1070 video card vs ZOTAC GAMING GeForce RTX 2080 AMP video card by specifications and benchmarks. ZOTAC GeForce GTX 1070 runs at 1.506 GHz base clock speed and has 8 GB of GDDR5 memory, while video card ZOTAC GAMING GeForce RTX 2080 AMP runs at 1.515 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 220 W+ 47 %, and the second is 225 W+ 5 %. Compare the table of benchmark results to find out which graphic card is better.