Hi guys,
Based on the information provided by iStat Menus, I may start to think that my MacBook Pro fails to disable the integrated Intel GPU while the dedicated one is in use. I noticed this issue while playing Football Manager, which should trigger the dedicated GPU over the integrated one.
Background information:
- MacBook Pro 16" Late 2019, Core i9 2,3Ghz, 16GB RAM, 1TB SSD, AMD Radeon 5500M 8GB
- macOS Catalina 10.15.2
Automatic GPU switching active for both battery and AC usage (sorry, it's in German):
GPU intensive application running (Football Manager), let's check iStat Menus and the active GPU based on system information provided by Apple. Expactation: dGPU should be in use, iGPU is at 0 W.
In fact, the iGPU seems to be still in use and is draining the battery.
Now let's disable automatic GPU switching and check what iStat is reporting:
GPU is now reporting as dedicated one according to Apple system information. Good. What about iStat?
As expected, Intel GPU is at 0Mhz and 0,00 W.
Now, what happens if we quit the application which forces the dGPU? Assumption: Radeon goes back to sleep at 0,00 W and the iGPU should be at around 1 W.
Okay, Radeon still at 0,11W. Weird. No clue tbh. But the iGPU is draining battery and is running. Numbers can be confirmed by Intel Power Tool
Did anyone notice something similar? I remember a similar issue back then in late 2016 when the Touchbar MacBook Pro was released. The MacBook failed to properly disable the dedicated GPU, leading to a massive battery drain.
Best Regards,
Fabian
Based on the information provided by iStat Menus, I may start to think that my MacBook Pro fails to disable the integrated Intel GPU while the dedicated one is in use. I noticed this issue while playing Football Manager, which should trigger the dedicated GPU over the integrated one.
Background information:
- MacBook Pro 16" Late 2019, Core i9 2,3Ghz, 16GB RAM, 1TB SSD, AMD Radeon 5500M 8GB
- macOS Catalina 10.15.2
Automatic GPU switching active for both battery and AC usage (sorry, it's in German):
GPU intensive application running (Football Manager), let's check iStat Menus and the active GPU based on system information provided by Apple. Expactation: dGPU should be in use, iGPU is at 0 W.
In fact, the iGPU seems to be still in use and is draining the battery.
Now let's disable automatic GPU switching and check what iStat is reporting:
GPU is now reporting as dedicated one according to Apple system information. Good. What about iStat?
As expected, Intel GPU is at 0Mhz and 0,00 W.
Now, what happens if we quit the application which forces the dGPU? Assumption: Radeon goes back to sleep at 0,00 W and the iGPU should be at around 1 W.
Okay, Radeon still at 0,11W. Weird. No clue tbh. But the iGPU is draining battery and is running. Numbers can be confirmed by Intel Power Tool
Did anyone notice something similar? I remember a similar issue back then in late 2016 when the Touchbar MacBook Pro was released. The MacBook failed to properly disable the dedicated GPU, leading to a massive battery drain.
Best Regards,
Fabian
