Comparison of ZOTAC GeForce GTX 1070 AMP Extreme video card vs Gainward GeForce RTX 3070 Phantom+ GS LHR 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 Gainward GeForce RTX 3070 Phantom+ GS LHR runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 250 W+ 67 %, and the second is 270 W+ 23 %. Compare the table of benchmark results to find out which graphic card is better.