Comparison of Colorful iGame GeForce GTX 1070 Ti Twin-V video card vs GALAX GeForce GTX 1080 video card by specs and benchmarks. Colorful iGame GeForce GTX 1070 Ti Twin-V runs at 1.607 GHz base clock speed and has 8 GB of GDDR5 memory, while video card GALAX GeForce GTX 1080 runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The weight is different, -- vs --. The TDP of the first video card is 180 W, and the second is 180 W . Compare the benchmark results to find out which video card is better.