The question for me is whether it will run at 120hz like the iPad Pro or 144hz like other monitors. Apple has been driving 5K at 60hz for a few years now, so doubling the refresh rate might not be such a big ask.
All 5K panels in production are 60Hz only. Also, all the current DisplayPort standards (up through 1.4) only support 60Hz at 5K resolutions.
The internal display would not be restricted by the DisplayPort specs, so Apple could double the refresh rate.DisplayPort standards ... only support 60Hz at 5K resolutions.
The internal display would not be restricted by the DisplayPort specs, so Apple could double the refresh rate.
They could work with the uniformity, så it would have a perfect screen like Eizo ColorEdge.
They could work with the uniformity, så it would have a perfect screen like Eizo ColorEdge.
Going by the specifications advertised on Apple's website, the display is exactly the same as the one in the 2017 5K iMac. And I don't think it needs to be any better (at least while 8K is still cost-prohibitive).
It's going to be 10bit display with 30bit colour. Vega GPU with Display port 1.4 and Metal 2 API (with improved support) both offer the support for HDR & 10bit display. Apple advertises that iMac Pro can produce 10bit colours with better gradients. But it still could be 100% same display as iMac 5k.
PS. Most likely we're going to see ProMotion in macOS 10.14 next year. Maybe external HDR 1000 nits display along Mac Pro 2018?
AMD Vega supports natively 10 bit (30 bit) colors, and so does Metal 2. No official support for more. Apple's billions of colors can come out with dithering only. Or maybe with two different monitors with different colour space...It says "5120‑by‑2880 resolution with support for billions of colors" for the iMac Pro
vs "5120‑by‑2880 resolution with support for one billion colors" for the iMac 27" 5K.
That would imply 12-bit instead of 10-bit color. Maybe same screen but 12-bit GPU.
Edit: under the "Video Support and Camera" section it says with external displays it
Simultaneously supports full native resolution on the built-in display at 1 billion colors and:
so either one's a typo or the Pro screen reverts to 10-bit when attaching external displays.
AMD Vega supports natively 10 bit (30 bit) colors, and so does Metal 2. No official support for more. Apple's billions of colors can come out with dithering only. Or maybe with two different monitors with different colour space...Marketing...
Update: Samsung seems to be using similar claim of "Billions of colours" and then just under the same text it reads: 1.07 bn colours...
http://www.samsung.com/uk/business/business-products/business-monitor/professional/LS32D85KTSR/EN