Comparison of MSI GeForce GTX 1080 Ti LIGHTNING Z video card vs KFA2 GeForce RTX 3090 HOF video card by specifications and benchmarks. MSI GeForce GTX 1080 Ti LIGHTNING Z runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory, while video card KFA2 GeForce RTX 3090 HOF 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.