With the recent increase in the quantity of high fidelity games appearing on mobile devices and the recent trend of gaming focused mobile devices, there is a new requirement for a clear and comprehensive measure of the quality of gaming performance on the mobile device platform. This paper proposes a conceptual framework for a user-experience and user-perception based set of performance measures for mobile devices. This paper presents a specific implementation and measurement use case which has been beneficial to Samsung Electronics when applied to our own product range, allowing us to better understand and quantify device performance. We believe that the methods outlined are potentially useful to the consumer, by providing an understandable public facing score for device performance to guide consumers with purchasing decisions. The methods may be useful to game developers and could better enable the developer to add new richer game features based on the performance of the device.