Comparison of ZOTAC GeForce GTX 1070 AMP Extreme Core video card vs GIGABYTE GeForce GTX 1080 Founders Edition 8G video card by specifications and benchmarks. ZOTAC GeForce GTX 1070 AMP Extreme Core runs at 1.607 GHz+ 7 % base clock speed and has 8 GB of GDDR5 memory, while video card GIGABYTE GeForce GTX 1080 Founders Edition 8G runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 250 W+ 67 %, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.