Comparison of Zotac GeForce GTX 980 OC video card vs GIGABYTE GeForce GTX 980 WATERFORCE GAMING video card by specs and benchmarks. Zotac GeForce GTX 980 OC runs at 1.139 GHz+ 1 % base clock speed and has 4 GB of GDDR5 memory, while video card GIGABYTE GeForce GTX 980 WATERFORCE GAMING runs at 1.139 GHz+ 1 % base clock speed and has 4 GB of GDDR5 memory. The weight is different, -- vs --. The TDP of the first video card is 165 W, and the second is 165 W . Compare the benchmark results to find out which video card is better.