Comparison of GALAX GeForce RTX 2080 Ti video card vs GIGABYTE GeForce GTX 980 Ti Windforce 3X video card by specs and benchmarks. GALAX GeForce RTX 2080 Ti runs at 1.350 GHz base clock speed and has 11 GB of GDDR6 memory, while video card GIGABYTE GeForce GTX 980 Ti Windforce 3X runs at 1.350 GHz base clock speed and has 6 GB of GDDR5 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.