Comparison of Gainward GeForce GT 1030 SilentFX video card vs KFA2 GeForce RTX 3070 SG (1-Click OC) video card by specifications and benchmarks. Gainward GeForce GT 1030 SilentFX runs at 1.227 GHz base clock speed and has 2 GB of GDDR5 memory, while video card KFA2 GeForce RTX 3070 SG (1-Click OC) runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 30 W, and the second is 220 W. Compare the table of benchmark results to find out which graphic card is better.