Comparison of KFA2 GeForce GTX 1080 EX OC video card vs MSI GeForce GTX 1660 ARMOR 6G video card by specifications and benchmarks. KFA2 GeForce GTX 1080 EX OC runs at 1.657 GHz+ 3 % base clock speed and has 8 GB of GDDR5X memory, while video card MSI GeForce GTX 1660 ARMOR 6G runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 180 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.