Comparison of Gainward GeForce GTX 1070 Phoenix GLH video card vs ZOTAC GeForce GTX 1070 AMP Extreme Core video card by specifications and benchmarks. Gainward GeForce GTX 1070 Phoenix GLH runs at 1.670 GHz+ 11 % base clock speed and has 8 GB of GDDR5 memory, while video card ZOTAC GeForce GTX 1070 AMP Extreme Core runs at 1.607 GHz+ 7 % base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 150 W, and the second is 250 W+ 67 %. Compare the table of benchmark results to find out which graphic card is better.