What is the Intel Power Limit Device Windows Driver?

The Intel Power Limit Device driver is part of Intel's power management technologies, often included as a part of system drivers on computers with Intel processors. It allows the operating system to control and manage power limits set on Intel CPUs, ensuring that the processor operates within its specified power and thermal limits. This is important for balancing performance and power consumption, especially in laptops and other mobile devices.

The Intel Power Limit Device driver enables the operating system (such as Windows) to properly interact with Intel's Power Management features, which help manage things like:

• Thermal throttling (reducing the CPU speed to prevent overheating)
• Dynamic frequency scaling (adjusting CPU frequency based on the current workload to save power)
• Intel SpeedStep (adjusts the processor's voltage and frequency according to system demands)
• Turbo Boost (increases the processor's clock speed when more performance is needed)

This driver is typically included as part of the Intel Management Engine Interface (MEI) or as part of the Intel Chipset Driver package. It ensures that the operating system can access and use the power management features correctly, allowing for better overall system performance and energy efficiency.