Comparison of Gainward GeForce RTX 2080 SUPER Phoenix GS video card vs NVIDIA GeForce GTX 1080 Ti video card by specifications and benchmarks. Gainward GeForce RTX 2080 SUPER Phoenix GS runs at 1.650 GHz base clock speed and has 8 GB of GDDR6 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.