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Multimedia applications become one of the most popular applications on mobile devices. An important current problem of multimedia applications running on battery powered devices is their power intensive profile, which entails an increase of device heat dissipation. Due to the intensive computational nature of multimedia applications and due to the resource limitations of mobile devices, current thermal management techniques are less effective on such systems. Furthermore, architectural changes of mobile systems, like multi-core processing units and virtualization layers are ready to spread with the new devices. Therefore, in this paper we try to identify the main parameters that influence power consumption and thermal dissipation of multimedia enabled devices and how they are to be affected by the new architectural changes.