Comparison of EVGA GeForce GTX 1080 Ti SC2 ELITE GAMING BLACK video card vs KFA2 GeForce RTX 3090 SG (1-Click OC) video card by specifications and benchmarks. EVGA GeForce GTX 1080 Ti SC2 ELITE GAMING BLACK runs at 1.556 GHz+ 5 % base clock speed and has 11 GB of GDDR5X memory, while video card KFA2 GeForce RTX 3090 SG (1-Click OC) runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 250 W, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.