Comparison of KFA2 GeForce GTX 1080 Ti EX OC video card vs ZOTAC GAMING GeForce RTX 2080 Ti AMP video card by specifications and benchmarks. KFA2 GeForce GTX 1080 Ti EX OC runs at 1.531 GHz+ 3 % base clock speed and has 11 GB of GDDR5X memory, while video card ZOTAC GAMING GeForce RTX 2080 Ti AMP runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 260 W+ 4 %. Compare the table of benchmark results to find out which graphic card is better.