Comparison of Gainward GeForce GTX 1080 Ti Phoenix GS video card vs NVIDIA TITAN V video card by specifications and benchmarks. Gainward GeForce GTX 1080 Ti Phoenix GS runs at 1.556 GHz+ 5 % base clock speed and has 11 GB of GDDR5X memory, while video card NVIDIA TITAN V runs at 1.200 GHz base clock speed and has 12 GB of HBM2 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.