Comparison of NVIDIA GeForce RTX 4080 video card vs KFA2 GeForce RTX 3080 SG (1-Click OC) video card by specifications and benchmarks. NVIDIA GeForce RTX 4080 runs at 2.205 GHz base clock speed and has 16 GB of GDDR6X memory, while video card KFA2 GeForce RTX 3080 SG (1-Click OC) runs at 1.440 GHz base clock speed and has 10 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.