Comparison of ZOTAC GeForce GTX 980 Ti video card vs ASUS Turbo GeForce RTX 2080 Ti video card by specifications and benchmarks. ZOTAC GeForce GTX 980 Ti runs at 1.000 GHz base clock speed and has 6 GB of GDDR5 memory, while video card ASUS Turbo GeForce RTX 2080 Ti 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 250 W. Compare the table of benchmark results to find out which graphic card is better.