Comparison of NVIDIA GeForce GTX 980 Ti video card vs MSI GeForce GTX 1080 Ti LIGHTNING video card by specs and benchmarks. NVIDIA GeForce GTX 980 Ti runs at 1.002 GHz base clock speed and has 6 GB of GDDR5 memory, while video card MSI GeForce GTX 1080 Ti LIGHTNING runs at 1.002 GHz base clock speed and has 11 GB of GDDR5X memory. The weight is different, -- vs 1707 g. The TDP of the first video card is 250 W, and the second is 250 W . Compare the benchmark results to find out which video card is better.