Comparison of Zotac GeForce GTX 980 OC video card vs GALAX GeForce GTX 980 SOC 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 GALAX GeForce GTX 980 SOC 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.