Comparison of PNY GeForce GTX 980 Ti video card vs KFA2 GeForce GTX 1080 Ti EX OC White video card by specifications and benchmarks. PNY GeForce GTX 980 Ti runs at 1.000 GHz base clock speed and has 6 GB of GDDR5 memory, while video card KFA2 GeForce GTX 1080 Ti EX OC White runs at 1.531 GHz+ 3 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 250 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.