To open the Integrated Graphics window, select the menu item Window > Show Integrated Graphics or press the key combination ⌘ + 7.
If you are using a computer that uses the graphics solution integrated into the main processor for video output, you can retrieve the corresponding data from this window. If this is not the case, the window only shows zero values. This is the case if your computer has a separate graphics chip or at least one graphics card and it is currently using it.
The presentation differs depending on whether an Intel processor or Apple processor is used.
GPU: Computers with Intel processors
The window lists the following data:
Active GPU: Name of the graphics driver of the integrated graphics solution that macOS is currently using.
Power limit: if necessary, a value for power limitation that is currently used to either save energy or to stay within the specified operating temperature range.
Frequency headroom limited on average by: a value in MHz that indicates by which interval the clock frequency of the GPU has been limited on average due to a power limit.
GPU: the internal name of the GPU used by the graphics driver
Core active: the utilization, i.e. the ratio of time per measurement time in which the graphics processor was actually in use
Distribution of the “Core Performance” idle states: a graphic that shows in which C-states the chip was during measurement. C-states are Intel-defined operating modes that characterize which parts of the chip are switched off when its processors are idle.
Note: the names of the C-states can be empty in practice. For better identification, Mac Power Monitor will replace them with an asterisk (*) when this issue is detected. In this case, the statistics feature of the graphics driver has not been programmed by Apple or Intel to the extent to provide readable designations.
Readings for an integrated GPU on a Mac with Intel processor
Effective frequency: the virtual clock frequency of the processor. The effective frequency takes into account a possible change of processor clock speed during measurement, as well as entering sleep mode during the measurement second, which is to be regarded as a zero value.
the actual clock frequencies used by the GPU during measurement are indicated graphically. The height of each bar indicates the ratio of time in which the respective frequency was in use.
Custom statistics: Each graphics driver is free to collect statistical data at its own discretion with detail readings unknown in advance. Mac Power Monitor lists this data in raw form with the names provided by the vendor.
GPU: Computer with Apple Silicon
The window lists the following data:
the type of processor, along with the number of existing GPU cores and an indication of the chip generation, which reflects the stage of development of the graphics part of this processor within the Apple world.
Effective frequency: the virtual clock frequency of the processor. The effective frequency takes into account a possible change of processor clock speed during measurement, as well as entering sleep mode during the measurement second, which is to be regarded as a zero value.
Activity: the utilization, i.e. ratio of time per measurement time in which the graphics processor was actually in use
Readings for an integrated GPU on a Mac with Apple Silicon
Residency in frequencies: the actual clock frequencies used by the GPU during measurement are graphically displayed. The height of each bar indicates the ratio of time in which the respective frequency was used.
Requested frequencies: as before, but with the indication which clock frequency was originally requested. The actual clock frequencies may differ in order to either save energy or to stay within the specified operating temperature range.