Comparison of GIGABYTE GeForce GTX 980 G1 GAMING video card vs Zotac GeForce GTX 980 video card by specifications and benchmarks. GIGABYTE GeForce GTX 980 G1 GAMING runs at 1.253 GHz+ 11 % base clock speed and has 4 GB of GDDR5 memory, while video card Zotac GeForce GTX 980 runs at 1.126 GHz base clock speed and has 4 GB of GDDR5 memory. The TDP of the first video card is 165 W, and the second is 165 W. Compare the table of benchmark results to find out which graphic card is better.