The UI of Android keeps improving as updates from the Android team keep flowing in. There has been a massive improvement in the aesthetics and looks of the system UI from the ancient Eclair till JellyBean. With improving UI and better graphics the system keeps becoming a resource hog! All android smartphones these days come with a separate GPU to satisfy the graphics rendering needs of the apps these days. However, the GPU doesn’t exactly help in rendering of the system UI that means the load falls of the CPU to render the system UI and other system framework.