This is important for usability and for the entertainment value of the tablet. Many people use their tablet device for console games, and the really good ones use up a lot of CPU power. Some tablet devices do not have the RAM capabilities, the graphics capabilities and the CPU processing power to handle these games. The processing power affects your usability by the fact that having your applications stutter and freeze can become very annoying. Ideally, if you set a program a task, you want it completed quickly and without any problems. A device with little processing power may not be able to hold true to that ideal.