Comparison of GIGABYTE Radeon VII HBM2 16G video card vs ZOTAC GeForce GTX 1070 AMP Extreme video card by specifications and benchmarks. GIGABYTE Radeon VII HBM2 16G runs at 1.400 GHz base clock speed and has 16 GB of HBM2 memory, while video card ZOTAC GeForce GTX 1070 AMP Extreme runs at 1.632 GHz+ 8 % base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 300 W, and the second is 250 W+ 67 %. Compare the table of benchmark results to find out which graphic card is better.