Comparison of ZOTAC GAMING GeForce RTX 2070 SUPER AMP Extreme video card vs Gainward GeForce RTX 3070 Phantom GS video card by specifications and benchmarks. ZOTAC GAMING GeForce RTX 2070 SUPER AMP Extreme runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Gainward GeForce RTX 3070 Phantom GS runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 215 W, and the second is 270 W+ 23 %. Compare the table of benchmark results to find out which graphic card is better.