Comparison of NVIDIA GeForce GTX 980 Ti video card vs EVGA GeForce RTX 2080 Ti XC Ultra Gaming 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 EVGA GeForce RTX 2080 Ti XC Ultra Gaming runs at 1.002 GHz base clock speed and has 11 GB of GDDR6 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.