Comparison of GIGABYTE GeForce GTX 1070 WINDFORCE OC 8G (rev. 1.0) video card vs KFA2 GeForce GTX 1080 Ti EX OC video card by specifications and benchmarks. GIGABYTE GeForce GTX 1070 WINDFORCE OC 8G (rev. 1.0) runs at 1.556 GHz+ 3 % base clock speed and has 8 GB of GDDR5 memory, while video card KFA2 GeForce GTX 1080 Ti EX OC runs at 1.531 GHz+ 3 % base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 150 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.