Comparison of Gainward GeForce GTX 1080 Ti Phoenix GS video card vs KFA2 GeForce GTX 1080 Ti EX OC White video card by specs and benchmarks. Gainward GeForce GTX 1080 Ti Phoenix GS runs at 1.556 GHz+ 5 % base clock speed and has 11 GB of GDDR5X memory, while video card KFA2 GeForce GTX 1080 Ti EX OC White runs at 1.556 GHz+ 5 % base clock speed and has 11 GB of GDDR5X memory. The weight is different, -- vs --. The TDP of the first video card is 250 W, and the second is 250 W . Compare the benchmark results to find out which video card is better.