Comparison of Gainward GeForce RTX 2070 Phantom video card vs ASUS Dual GeForce RTX 3070 SI Edition video card by specifications and benchmarks. Gainward GeForce RTX 2070 Phantom runs at 1.410 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ASUS Dual GeForce RTX 3070 SI Edition 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 220 W. Compare the table of benchmark results to find out which graphic card is better.