Comparison of GIGABYTE GeForce GTX 980 Ti Windforce 3X OC video card vs NVIDIA GeForce GTX 1080 Ti video card by specifications and benchmarks. GIGABYTE GeForce GTX 980 Ti Windforce 3X OC runs at 1.102 GHz+ 10 % base clock speed and has 6 GB of GDDR5 memory, while video card NVIDIA GeForce GTX 1080 Ti runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X 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.