'High-end' Apple Silicon iMac may not arrive until 2022
A high-end iMac release may not be until 2022, according to a leaker, with it apparently being launched later than other anticipated Mac updates to the "M1X" chip to maximize attention on the rest of the lineup.

The 24-inch iMac.
Apple is expected to introduce more Mac products running on Apple Silicon before the end of 2021. While rumors point to a second iMac using Apple's chip family as being on the way, it seems that it won't be part of an expected launch lineup this fall.
According to serial leaker "Dylandkt" on Twitter, a "high end iMac" will be released in 2022. The iOS developer later explained that the model is not expected to be released in the fourth quarter alongside "other M1X Macs."
Dylan reasons this to be the case because "Apple simply does not want their devices to compete for attention." There is also the belief that delays in product releases have led to the extended timetable.
Apple is thought to be working on new models of a 14-inch MacBook Pro, a 16-inch MacBook Pro, an updated MacBook Air, and an overhauled Mac mini.
As for when in 2022 to anticipate a new bigger iMac, the leaker insists the delays makes it hard to determine a specific schedule for release, since it can "change quickly."
In April, it was rumored by another leaker that a bigger iMac was in development, one that would have a larger viewable area than the existing largest 27-inch iMac. In July, another report chimed in to say a new iMac was on the way to replace the 27-inch model, though with a potentially bigger screen and using an M2 chip.
The leaker does have a track record. He was accurate in predicting that what turned out to be the 24-inch iMac reveal would focus on the lower end, versus a 27-inch replacement. About a half-year before it happened, he also predicted that the M1 was going to come to the iPad Pro.
Read on AppleInsider

The 24-inch iMac.
Apple is expected to introduce more Mac products running on Apple Silicon before the end of 2021. While rumors point to a second iMac using Apple's chip family as being on the way, it seems that it won't be part of an expected launch lineup this fall.
According to serial leaker "Dylandkt" on Twitter, a "high end iMac" will be released in 2022. The iOS developer later explained that the model is not expected to be released in the fourth quarter alongside "other M1X Macs."
Dylan reasons this to be the case because "Apple simply does not want their devices to compete for attention." There is also the belief that delays in product releases have led to the extended timetable.
Apple is thought to be working on new models of a 14-inch MacBook Pro, a 16-inch MacBook Pro, an updated MacBook Air, and an overhauled Mac mini.
As for when in 2022 to anticipate a new bigger iMac, the leaker insists the delays makes it hard to determine a specific schedule for release, since it can "change quickly."
In April, it was rumored by another leaker that a bigger iMac was in development, one that would have a larger viewable area than the existing largest 27-inch iMac. In July, another report chimed in to say a new iMac was on the way to replace the 27-inch model, though with a potentially bigger screen and using an M2 chip.
The leaker does have a track record. He was accurate in predicting that what turned out to be the 24-inch iMac reveal would focus on the lower end, versus a 27-inch replacement. About a half-year before it happened, he also predicted that the M1 was going to come to the iPad Pro.
Read on AppleInsider
Comments
Nobody sane who follows Apple believed that an Apple Silicon Mac Pro was imminent this year. After all Apple themselves clearly stated that their transition to Apple Silicon was a two-year process and we aren't even at fourteen months after the unveiling during last year's WWDC in June.
Apple does not like to share the limelight with other companies. That's why they bailed out of the Macworld Expo years ago: they make announcements on their own schedule, not someone else's.
What they call the chip??? Maybe by the time it comes out, they'll be up to an M2X.
If the performance is on par, I’d buy an iMac M1X regardless if it’s 2021 or 2022.
If they want to come out with an iMac Pro replacement - fine - but it was asinine to only update the smaller model and not address the larger screen too.
This is why all in ones suck - I sure as hell hope the rumors of them finally coming up with new displays are true.
So either they include a powerful discrete GPU or they create a powerful integrated GPU.
From a thermal design standpoint, having a discrete GPU is probably more likely. Perhaps the more interesting question is how they will handle the Neural Engine. Will they put that circuitry on its own chip?
One unknown is whether or not Apple would use a Neural Engine-only chip in their own server hardware; I wouldn't expect them to productize this. It would be used for their own cloud operations (Siri, image processing, video processing, whatever).
I would not be surprised if somewhere in a lab in Cupertino, there are prototype task-specific ASICs: 3D rasterization, AI, and signal processing (especially video encoding).
Why? We can get a much better Intel iMac 27" today. We don't need a crippled Apple silicon version. 16GB RAM vs 128GB RAM capability is kind of a no-brainer, Intel is a better choice than M1.