Comparison of ZOTAC GeForce GTX 1080 Ti Blower video card vs NVIDIA GeForce GTX 980 Ti video card by specifications and benchmarks. ZOTAC GeForce GTX 1080 Ti Blower runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory, while video card NVIDIA GeForce GTX 980 Ti runs at 1.002 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.