An engineering flaw in the process of creating the A16 chip from Manzana made the GPUs of iPhone 14 Pro make it less powerful and remove features like ray tracing support, because it used more power than expected and would have affected battery life.
The American company presented the iPhone 14 Pro last September, when it advanced some features of its new A16 Bionic chip, such as that it integrates close to 16,000 million transistors and has been manufactured with a 4-nanometer process, which translates into higher performance and lower energy consumption.
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In addition, the company led by Tim Cook, highlighted that the A16 Bionic processor had a neural engine capable of performing 17 trillion operations per second, and generally improved the camera system. This is possible because all its elements, including the ISP, allow 4 billion operations per photo.
However, when it comes to reporting the GPU features of this chip, Apple only mentioned that it had five cores and that it offered 50% greater bandwidth. Now, The Information has revealed that, late in the development process of the processor, design flaws were discovered and, as a consequence, some features that the company planned to include in the GPU were scrapped.
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In short, due to these bugs, which were caught late by Apple, the company decided to scrap plans for the A16 chip and get a less powerful GPU. For this reason, they eliminated technologies such as ray tracing, a system with which light in video games is made to act like light in real life.
Although at the beginning of the simulations of this chip the company believed that this design would work correctlyonce the prototypes were manufactured, he saw how the GPU was consuming more power than expected. This would affect the useful life of the battery, which would have less autonomy than expected, and would have caused overheating on the devices.
In addition, the report reveals that the development team was “too ambitious” trying to create a next generation GPU with very advanced features. As the resulting product, the iPhone 14 Pro uses a GPU more similar to that of its previous model (iPhone 13 Pro).
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