The HTC One X was the first Android handset to launch this year with a quad-core Nvidia Tegra 3 processor. The handset technically has five cores with 4 powerful Cortex-A9 cores, and one battery-saving fifth core. Nvidia’s Tegra 3 SoC contains some advanced power-gating features, which allows it to switch off individual cores when they are not in use to save power.
An XDA member – Meltus – has released an application, CoreControl, that aims to provide One X users with full control over the four-cores of the Tegra 3 SoC. The application allows One X owners to control how many cores are active on their phone at any given battery percentage or at different temperatures. So at 100%, a user can have all the four cores active, but once the battery goes down below 50%, only two cores will remain active.
The application is still a work in progress with many new features yet to be added. The developer has been working hard on it though and has been updating the application regularly. More information and download link for Core Control can be found here.
P.S. The application is only meant for the Tegra 3/International variant of the HTC One X.