Comparison of PNY GeForce GTX 980 Ti video card vs Gainward GeForce GTX 1080 Ti GS video card by specs and benchmarks. PNY GeForce GTX 980 Ti runs at 1.000 GHz base clock speed and has 6 GB of GDDR5 memory, while video card Gainward GeForce GTX 1080 Ti GS runs at 1.000 GHz base clock speed and has 11 GB of GDDR5X memory. The weight is different, -- vs --. 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.