New update from my source

Apple is now developing 3 parallel lines of Macbook Pro notebooks

1. First line will be using 10nm Intel CPUs
2. Second line will be using AMD APUs, some models will supply AMD GPUs with them
3. Third line using their own ARM CPUs, final CPUs are not ready due to issue with 5nm TSMC process

Their own line is slowest, CPUs are not made for perisistent hard tasks.
Whole Apple ARM design is made for high short load and instant thermal throttle after this.

Apple’s new chips will “give the Mac industry-leading performance per watt”

Present ARM chips are very badly optimized for high frequencies and best logn time performance.

It is still high probability that move to ARM chips will be cancelled as it is 3 top managers who push this, and is Apple performance in iPhone sales will be bad due to coronavirus we can see huge strategy shifts and change of Apple CEO.

In their new world, all ios apps will work on macs....but most interesting ios apps , like instruments, need an touchscreen. If they released a mpe touchscreen imac that would run Velocity Keyboard ( or geoshred or ifretless sax ), now that would be something interesting.

Also MacOS is now mostly iOS, as all core elements in new version are from iOS, despite lot of MacOS still remaining (mostly for compatibility reasons).

In next 2-3 years we'll see how old features and compact desktop and mouse oriented design will be flushed out.

Apple’s transition to a fully ARM-based lineup will take 12 to 18 months. The analyst expects the new ARM machines to outperform their Intel predecessors by 50 to 100 percent, though the actual performance will of course depend on what Apple decides to prioritize with the new designs.

Well, Apple are masters of proper charts and presentations.

My source at Apple told that it is big tensions among Mac hardware team.

Almost all top management and some lead hardware guys support propriatary ARM and total system lockdown.

Most people below and few managers support move to AMD CPUs and APUs, including both desktop and notebook lines.

Apple has growing hardware group who already made multiple notebook prototypes using 8 core CPUs and also prorotypes of 12-16 core mobile CPUs (will be available next year). And Apple ARM chips can't compete even with weakest of the chips. Especially bad situation is with prolonged hard work like rendering, cache performance, storage performance and cooling overall.

Present sales not so good

Our knowledgeable contacts have confirmed the MacBook 2021 will use a 5nm variation of A14X chip for iPad.

Kalamata might be the codename, and the fact that Apple is using Big Little approach with eight high performance cores codenamed Firestorm, and four energy-efficient Icestorm cores is hardly a surprise.

My english is not good. Sorry.

I learned this things at university. You need to understand that a word have a definition and sometime some other significations when you read between lines. Progress have a deep impact on our lives. Progress is not a panacea.

yes me too, I asked you a specific question.

It’s not because you don’t understand that it doesn’t make sense.

Give me one viable system (health, agriculture, education, politics, economics, energy, military, technology ...). I’d be happy to answer you that as soon as you create a tool, you solve a problem and you create others that will not be long in coming. This is called progress.

Go ahead, experience it, quote me a system and I will explain some of its problems caused by its tools.

Man has always known how to develop his tools, he is even very good at it. But he rarely does something good with it. At the end it always ends up creating a system that bites its tail. Progress is a system that always requires more to stand up. It's a vicious circle. The hammer and the nail gave way to the screwdrivers and the screws which itself gave way to the composite materials. What do you win? Solidity for more pollution. Progress is a system and all systems end badly. You know that I know it.

No really, don’t buy hammer too

Don’t buy Apple.

Apple Inc. is planning to start selling Mac computers with its own main processors by next year, relying on designs that helped popularize the iPhone and iPad, according to people familiar with the matter.

The Cupertino, California-based technology giant is working on three of its own Mac processors, known as systems-on-a-chip, based on the A14 processor in the next iPhone. The first of these will be much faster than the processors in the iPhone and iPad, the people said.

Apple is preparing to release at least one Mac with its own chip next year, according to the people. But the initiative to develop multiple chips, codenamed Kalamata, suggests the company will transition more of its Mac lineup away from current supplier Intel Corp.

Taiwan Semiconductor Manufacturing Co., Apple’s partner for iPhone and iPad processors, will build the new Mac chips, said the people, who asked not to be identified discussing private product plans. The components will be based on a 5-nanometer production technique

The first Mac processors will have eight high-performance cores, codenamed Firestorm, and at least four energy-efficient cores, known internally as Icestorm. Apple is exploring Mac processors with more than 12 cores for further in the future, the people said.

First custom Mac chips won’t be able to rival the performance Intel provides for high-end MacBook Pros, iMacs and the Mac Pro desktop computer.

Apple’s Mac processors will include several components, including the main processor, known as a Central Processing Unit or CPU, and the GPU, the graphics chip.

The Kalamata project has been going for several years. In 2018, Apple developed a Mac chip based on the iPad Pro’s A12X processor for internal testing. That gave the company’s engineers confidence they could begin replacing Intel in Macs as early as 2020

Apple has already started designing a second generation of Mac processors that follows the architecture of chips planned for the 2021 iPhone. That indicates Apple wants to put its Macs, iPhones and iPads on the same processor development cycle.

Macs will still run the macOS operating system, rather than the iOS software of the iPhone and iPad. Apple is exploring tools that will ensure apps developed for older Intel-based Macs still work on the new machines. The company also has technology called Catalyst that lets software developers build an iPad app and run it on Mac computers.

https://www.bloomberg.com/news/articles/2020-04-23/apple-aims-to-sell-macs-with-its-own-chips-starting-in-2021

Only one thing I do not agree is how muhc MacOS will change (actually it will be iOS but with different interface part).