Comparison of ZOTAC GeForce GTX 1070 Ti AMP Extreme video card vs GIGABYTE GeForce GTX 1080 G1 ROCK 8G video card by specs and benchmarks. ZOTAC GeForce GTX 1070 Ti AMP Extreme runs at 1.607 GHz base clock speed and has 8 GB of GDDR5 memory, while video card GIGABYTE GeForce GTX 1080 G1 ROCK 8G 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.