Comparison of GALAX GeForce GTX 1070 Ti EX video card vs GALAX GeForce GTX 1080 video card by specs and benchmarks. GALAX GeForce GTX 1070 Ti EX 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.