Comparison of EVGA GeForce RTX 2070 XC BLACK GAMING video card vs Gainward GeForce RTX 3070 Phantom video card by specifications and benchmarks. EVGA GeForce RTX 2070 XC BLACK GAMING runs at 1.410 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Gainward GeForce RTX 3070 Phantom runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 175 W, and the second is 250 W+ 14 %. Compare the table of benchmark results to find out which graphic card is better.