Add to ORKGA method for maintaining quality of service ingame servers with excessive users is often done by increasing thenumber of game servers. While this method is straightforward,it demands a number of new machines to be invested withoutrealizing local utilization of resources available in the currentmachines. In this paper, we argue that graphic processor (GPU)working in parallel with local central processor (CPU) insidea machine can be a good candidate for reducing the workload,before attempting to distribute it to the other machines. By usingthe empirical study, we investigate in what level the GPU can givebenefits to different types of online game servers. As a result, wecan give suggestion how the GPU should be involved so that theperformance...