Comment by klardotsh
10 hours ago
I’ll give you an anecdote: my work laptop is an M3 Pro MBP, and my Dell U4025QW works just fine with it over Thunderbolt at 120Hz VRR
10 hours ago
I’ll give you an anecdote: my work laptop is an M3 Pro MBP, and my Dell U4025QW works just fine with it over Thunderbolt at 120Hz VRR
That monitor has a noticeable lower pixel count.
Dell U4025QW: 5120 x 2160 = 11,059,200 vs Apple Studio Display XDR: 5120 x 2880 = 14,745,600
So your display has 25% less pixels.
It’s quite possible this is running with a reduced color space (chroma subsampling). Degradation happens automatically based on available throughput and most people don’t notice.
For desktop use? Chroma subsampling is obvious. DSC compression, on the other hand, is not. DisplayPort and HDMI support both.
It’s obvious if you use a test pattern and/or know what to look for: https://testufo.com/chroma
I had no idea what it was for the longest time. As it turns out, macOS frequently enables it even when it’s unnecessary, and without any way to override.