Comparison of GIGABYTE GeForce GTX 980 G1 GAMING video card vs Zotac GeForce GTX 980 AMP! Omega Core video card by specs 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 AMP! Omega Core runs at 1.253 GHz+ 11 % 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.