With regard to OS support, I have no idea. But i'm pretty sure it would only be possible on an OLED or mini-LED backlit display. With a standard backlight you can't selectively make some areas normal and other areas super bright.
Yes, AFAIK this would be impossible without mini-LED or OLED. However, I was just wondering if it was possible on other OSes if you had the right hardware.
That's fine in a bright room during the day but 500 nits might be a bit too much for reading in a dim environment like a bedroom. Also, the 1600 nits in the video would only be for the highlights like light sources. The other content in the video shouldn't exceed 500 nits. I hope the guys at Rtings decide to test the display. By the way, the MacOS doesn't do AutoHDR for SDR sources like Windows 11, right?
Those are just the maximum brightness values for those profiles, but you can turn down the brightness of course. And yes, the HDR video's 1600 nits max is just for specular highlights, etc.
Dunno about auto HDR. What is the point of auto HDR though? Seems like a great way to screw up the image.
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The Verge just put out their review:
Premiere Pro with After Effects does extremely well on M1 Max, and pretty well on M1 Pro.
They said that for Pugetbench, these machines are amongst the best laptops in existence. The scores they found on the Windows side that beat the Macs were all desktops.
Gaming still is bad overall, but it is less bad on the Max than the Pro obviously.
She said the overall feel of editing in Premiere Pro was somewhat similar between the M1 Pro and her usual 27" iMac Core i9-9900K with Radeon Pro 575X, but the M1 Max had a huge advantage in smoothness and overall feel compared to both the M1 Pro and Intel iMac. However, both the M1 Pro and M1 Max had way, way better export times than the Intel iMac.
Obviously, working in ProRes in Final Cut was on another level, and the export times were absurdly short. She said she's an Adobe person, but these performance differences were enough to make her consider the possibility of switching to Final Cut.
However, Adobe is improving their optimizations dramatically too. Compare these two versions of After Effects. The red version just came out. The blue is older. However, in After Effects the Mac Pro 16-core with 2 x Vega II still beat the M1 Pro/Max MacBook Pros. OTOH, those MacBook Pros were awfully close.