Comparison of Gainward GeForce GTX 1070 Phoenix GS video card vs Colorful iGame GeForce GTX 1080 Ti Vulcan AD-V video card by specifications and benchmarks. Gainward GeForce GTX 1070 Phoenix GS runs at 1.632 GHz+ 8 % base clock speed and has 8 GB of GDDR5 memory, while video card Colorful iGame GeForce GTX 1080 Ti Vulcan AD-V runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 150 W, and the second is 280 W+ 12 %. Compare the table of benchmark results to find out which graphic card is better.