Saturday, November 26, 2022

Iphone 14 | iPhone 14 Pro: A16 with smaller transistors but larger chip area | News | apple iphone


Iphone 14 | iPhone 14 Pro: A16 with smaller transistors but larger chip area | News | apple iphone | iPhone 14 pro max inside.570569Iphone 14 | iPhone 14 Pro: A16 with smaller transistors but larger chip area | News | apple iphone | iPhone 14 pro max inside.570569Apple’s A16, which is used in the iPhone 14 Pro (Max), is manufactured by TSMC using the 4-nanometer process. Viewed soberly, this is only a further development of the 5-nanometer technology that is used in the A15. However, the structural width is naturally smaller than that of the predecessor, so the transistors are a bit smaller. Apple was therefore able to increase their number by around six percent, to 16 billion (A15: 15 billion), while using less energy. Since the integration density has also been improved by six percent, the new chip in the current top models could be as large as the processors in all variants of the iPhone 13 and iPhone 14 (Plus).

Apple has changed the layout of the processor cores
This is a first analysis of Angronomics according to this, however, does not appear to be the case. Rather, the website assumes that the chip area of ​​the A16 is slightly larger than that of the A15. This assumption is based on a recently published on Twitter, on which some structures of Apple’s new SoC can be identified.

Angstronomics cites a changed layout of the actual processor cores as one of the reasons for the growth of the so-called dies, which is due to the more complex logic. Both the performance cores, called “Everest” by Apple, and the efficiency cores called “Sawtooth” therefore take up a little more space than their predecessors “Avalanche” and “Blizzard”.

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Iphone 14 | iPhone 14 Pro: A16 with smaller transistors but larger chip area | News | apple iphone | Bild.570846
The A16 (left) compared to the A15
Source: Angronomics

A16 with more level 2 cache than A15
In addition, Apple has significantly expanded the level 2 cache of the performance cores of the A16. This now has a capacity of 16 megabytes, with the A15 it was 12 megabytes. At the same time, the Californian company reduced the system level cache to 24 megabytes (A15: 32 megabytes), but according to Angstronomics this change does not compensate for the increased space requirement due to the enlargement of the L2 cache. Together with other changes, for example in the arrangement of the individual SoC areas, these measures lead to a slight increase in the chip area. The reduction in the structure width does not have the effect that would have been theoretically expected.



Tag: iphone design, iphone 14, apple iphone, iphone release

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