For each of a plurality of rendering objects to be used to generate a screen to be provided for a client device, identification information and detailed information indicating data necessary for rendering are acquired. By referring to detailed information of each of the plurality of rendering objects, the rendering order of all the rendering objects is determined so as to allocate consecutive ordinal numbers to rendering objects having at least partial data indicated by detailed information in common. A rendering control apparatus transfers data, indicated by detailed information of a rendering object in accordance with the rendering order, to a GPU. In this process, among data indicated by detailed information of rendering objects which are continuous in the rendering order, only data which is not the same as data already transferred to the GPU is read out and transferred.