Comparison of KFA2 GeForce RTX 3080 EX Gamer (1-Click OC) video card vs Gainward GeForce RTX 4080 Phantom GS video card by specifications and benchmarks. KFA2 GeForce RTX 3080 EX Gamer (1-Click OC) runs at 1.440 GHz base clock speed and has 10 GB of GDDR6X memory, while video card Gainward GeForce RTX 4080 Phantom GS runs at 2.205 GHz base clock speed and has 16 GB of GDDR6X memory. The TDP of the first video card is 320 W, and the second is 320 W. Compare the table of benchmark results to find out which graphic card is better.