Mac OS Sonoma uses straight-forward resolution outputs (rather than the bigger text / smaller text nonsense). It will always output to the native res of the screen, and scales to that. For a 4k screen @ 2560 it will thus render at 2x that and then scale it to the 4k output. This actually looks great, despite the 1.33 ratio (smoother than native non 5k 2560), but this will indeed take a chunk of GPU, which you may well notice if you’re doing intensive graphics stuff on screen.midi_transmission wrote: Sat Jan 13, 2024 3:06 pmAlso be aware that non integer scaling on macOS causes higher load. There are some complains about that too. Using a 4k display with a scaled resolution on a Mac can cause more load than using a 5k screen.
The bit that always gets left off is that you can easily enable “show all resolutions”, and select “low resolution”, and avoid the 2x scaling performance penalty. Though it'll look terrible (think Windows without Truetype at a non-native res). Still, it does give you the option and, IMO, the 2x scaling generally makes fonts look nicer than Windows etc.
Hmm, whilst what you’re saying isn’t wrong, there are a lot of caveats. It’s really about what works for the individual. EG A “retina display” is also about the viewing distance AND the eyesight of the individual.That's why 5k is a better technical choice for a 27" screen. The problem is that there are not a lot models available.
Anyone old enough, to require reading glasses, may struggle with 2560 @ 27 inches. You’d likely have an easier time with a larger 4k display scaled to 2560, and viewed from 2 or 3 feet away (meaning you don't need reading glasses) - especially for stuff like DAW use where small labels can be common.
Mac OS also “expects” a PPI of 109 (or 110 depending who you ask) to scale as Apple intends. Thus why you end up with Apple displays with weird resolutions, as it tries to stick to both the PPI and 2x pixel density. But PPI issues are usually overstated and, whilst you should be aware of how scaling can impact GPU performance, (IMO) it’s far more important that you can actually see a screen without struggling.
