Comparison of Gainward GeForce RTX 3080 12GB Phantom video card vs KFA2 GeForce RTX 3080 Ti SG (1-Click OC) video card by specifications and benchmarks. Gainward GeForce RTX 3080 12GB Phantom runs at 1.260 GHz base clock speed and has 12 GB of GDDR6X memory, while video card KFA2 GeForce RTX 3080 Ti SG (1-Click OC) runs at 1.365 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 350 W, and the second is 350 W. Compare the table of benchmark results to find out which graphic card is better.