Comparison of KFA2 GeForce GTX 1070 EX Black Edition video card vs Colorful iGame GeForce GTX 1080 X-TOP-8G video card by specifications and benchmarks. KFA2 GeForce GTX 1070 EX Black Edition runs at 1.518 GHz+ 1 % base clock speed and has 8 GB of GDDR5 memory, while video card Colorful iGame GeForce GTX 1080 X-TOP-8G runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 150 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.