I will demonstrate my idea on a 4K monitor, there are 4 options:
- Native 4K
From What I undersrand, the 4K and 1080p should be on par when it comes to the GPU demands as the 1080p is derived (directly scaled, i.e., zoomed) from 2160p. However, 1440p and 1692p, respectively, are more demanding as macOS has to scale down from 2 times higher resolutions, i.e., 2880p and 3384p.
If it works that way, then by the same logic, if I list the GPU demands with the 2K and 5K monitors, then the scale would be as follows (starting from the least GPU heavy case):
- (2K) 1440p native, (2K) 720p
- (4K) native, (4K) 1080p, (2K) 1080p
- (2K) 1152p
- (4K) 1440p, (5K) native, (5K) 1440p
- (4K) 1692p
Does it work that way or am I getting it all wrong?
I have been wondering about this for a long time as Windows uses a different mechanism, which is clear to understand.