Comparison of Gainward GeForce RTX 2070 Phantom GS video card vs KFA2 GeForce RTX 3070 SG (1-Click OC) LHR video card by specifications and benchmarks. Gainward GeForce RTX 2070 Phantom GS runs at 1.410 GHz base clock speed and has 8 GB of GDDR6 memory, while video card KFA2 GeForce RTX 3070 SG (1-Click OC) LHR runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 185 W+ 6 %, and the second is 220 W. Compare the table of benchmark results to find out which graphic card is better.