All the configs Apple seems to offer are more graphics power: force more dGPU and therefore force worse battery life. Only using hacks – like gfxCardStatus – it is possible to get into the state of forcing more iGPU and better battery life (compared to – sometimes badly working – "Automatic Switching"). So, in effect, yes, "Higher Performance" is the same as unchecking the checkbox in the first screen, that is, to force the dGPU. checked "Higher Performance" = defaults to dGPU not switchable to iGPU.Unchecked "Automatic Switching" = defaults to dGPU not switchable to iGPUĬhecked "Better Battery Life" = defaults to iGPU not switchable to dGPU checked "Automatic Switching" = defaults to iGPU switchable to dGPU.Influencing these settings leads to the following options: just a simple Java stub with demanding graphics or a badly written app). Depending on the version of the operating system or the application this request could be quite arbitrary (e.g. IGPU is used as default but anything requesting "real graphics power" leads to switching to the dGPU. The default checkbox you see without gfxCardStatus means: Once the GUI arrives the drivers for both iGPU and dGPU are available, full acceleration for both is available and the power management kicks in.įor graphics performance and power management Apple deems fit a rather simplistic scheme: On a Mac with dual switchable graphics (iGPU and dGPU) the general setup is as follows:īoot uses usually dGPU with limited, basic capabilities since the drivers aren't loaded yet.
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