I believe it's down to optimisations. Apple spend so much time optimising every OS release to run as efficiently as possible on each hardware variant/revision, since Apple Silicon I believe Apple is supplying so much more resource to optimisations for the ARM (Apple Silicon) platform and the Intel platform sort of feels like the bare minimum will do.
I have noticed this with small features in my Intel based MacBook Air, such as the dynamic moving Lock Screen landscapes, where when my Mac is locked, doing nothing and showing the Sonoma Horizon it can get quite hot to the touch, however as soon as the display final turns off, or I unlock to the desktop it returns to normal activity. Yet on my Apple Silicon MacBook, of course this has no abnormal behaviours at all while on the Lock Screen, due to higher specs as well of course. Safari feels slower for basic navigation. On my Intel based Mac even launching folder within the Launchpad is graphically much choppier compared to prior OS releases, as the optimisations for the Intel based components are just not there anymore, Sonoma isn't well polished for older x86 hardware.
Battery life from my Intel based Mac has taken quite a bit hit since Sonoma, where before I would get up to about 6-7 hours of usage, down to about 4 hours. I first thought this was perception based, due to a subconscious comparison of my new Apple Silicon MacBook, however then noticed I couldn't achieve the same tasks I normally perform without bring my power adapter which was a red flag. Activity Monitor could never identify anything abnormal within Energy Impact to correlate with this battery drain.
As I only use my Intel based Mac for web browsing, email and productivity tasks, all data is synced to iCloud therefore I performed an erase and install of Mac OS Sonoma 14.1.2 via Internet Recovery last week, yet all behaviours have persisted unfortunately. Therefore I created a bootable installer of Ventura, disabled T2 security measures via Recovery and installed a clean install of Ventura on Friday. I haven't had a lot of usage yet, however my battery has lasted a good bit longer with a greater forecast in Activity Monitor. Safari feels somewhat faster, still no where as quick as Mac releases prior to Apple Silicon and thing seem to run overall smoother compared to Mac OS Sonoma.
I have noticed this with small features in my Intel based MacBook Air, such as the dynamic moving Lock Screen landscapes, where when my Mac is locked, doing nothing and showing the Sonoma Horizon it can get quite hot to the touch, however as soon as the display final turns off, or I unlock to the desktop it returns to normal activity. Yet on my Apple Silicon MacBook, of course this has no abnormal behaviours at all while on the Lock Screen, due to higher specs as well of course. Safari feels slower for basic navigation. On my Intel based Mac even launching folder within the Launchpad is graphically much choppier compared to prior OS releases, as the optimisations for the Intel based components are just not there anymore, Sonoma isn't well polished for older x86 hardware.
Battery life from my Intel based Mac has taken quite a bit hit since Sonoma, where before I would get up to about 6-7 hours of usage, down to about 4 hours. I first thought this was perception based, due to a subconscious comparison of my new Apple Silicon MacBook, however then noticed I couldn't achieve the same tasks I normally perform without bring my power adapter which was a red flag. Activity Monitor could never identify anything abnormal within Energy Impact to correlate with this battery drain.
As I only use my Intel based Mac for web browsing, email and productivity tasks, all data is synced to iCloud therefore I performed an erase and install of Mac OS Sonoma 14.1.2 via Internet Recovery last week, yet all behaviours have persisted unfortunately. Therefore I created a bootable installer of Ventura, disabled T2 security measures via Recovery and installed a clean install of Ventura on Friday. I haven't had a lot of usage yet, however my battery has lasted a good bit longer with a greater forecast in Activity Monitor. Safari feels somewhat faster, still no where as quick as Mac releases prior to Apple Silicon and thing seem to run overall smoother compared to Mac OS Sonoma.
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