EGS

Probably the same version you already have if you are looking for this since it was released in 2010 and has not been updated.

If you don't know what this is, it is a power saver for your CPU. It will allow it to run at a lower power usage when you don't need the power, i.e. when the computer is idle vs playing a high intensity game where it will allow the CPU to run at full power.