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The Power Overview Window

To open the Power Overview window, select the menu item Window > Show Power Overview or press the key combination ⌘ + 1. The window will also open automatically at startup if you have closed all other result windows.

This window has a different structure, depending on whether you are using a Mac with Intel processor or with Apple processor. The two variants will be described below.

Power overview (for Intel-based Macs)

The window is divided into three parts:

The heading of the top box is the exact designation of the Intel processor. The nominal clock frequency is also listed, as well as the number of threads (logical processors), the number of built-in processor cores and the distribution of cores onto chip packages. The box contains the following values:

Power overview for Intel-based Macs
Power overview for Intel-based Macs

The second box indicates the use of main memory (RAM) for currently running processes and provides an overview of the input/output areas of a computer in classic data processing, namely the read/write operations across all disk-like storage devices (hard drives, SSDs, memory cards, etc.), as well as all network connections (Ethernet, WiFi, etc.) Indicated are:

The bottom box shows the power consumption of the Intel processor as well as the temperature condition during the measurement:

Power overview (for Macs with Apple Silicon)

The window is divided into three parts:

The heading of the top box is the exact designation of the Apple processor. This is followed by the distribution of the different types of cores:

The box contains an overview of the power distribution among the individual cores of the processor:

The second box indicates the use of main memory (RAM) by currently running processes and provides an overview of the bandwidths that the Apple Silicon used during measurement for certain subtasks. Indicated are:

Mac Power Monitor considers the following functions to be media features. The details may be subject to change depending on processor model:

Power overview for Macs with Apple silicon
Power overview for Macs with Apple silicon

The bottom box shows the power consumption of the Apple chip as well as the temperature condition during the measurement:

Temperature conditions defined by macOS

The operating system internally defines different temperature levels that indicate whether the current operating temperature of the processor is critical in relation to the maximum permissible temperature. The information does not correspond to a specific absolute temperature value, but indicates whether macOS must take countermeasures to keep the processor within the specified thermal range. Countermeasures include temporarily switching off certain processes (software) or processor cores (hardware) at very short time intervals, which leads to a reduction in power consumption by throttling. The following terms are used, which should be self-explanatory:

Trapping means that the hardware is triggering internal temperature alarms.