Comparison of KFA2 GeForce RTX 2080 Ti OC video card vs ASUS ROG Poseidon GeForce GTX 980 Ti video card by specifications and benchmarks. KFA2 GeForce RTX 2080 Ti OC runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory, while video card ASUS ROG Poseidon GeForce GTX 980 Ti runs at 1.000 GHz base clock speed and has 6 GB of GDDR5 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.