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Apple has announced in a statement to Ars Technica that there is virtually no difference in battery life between the A9 chips used in the new iPhone. In late September, it became clear that the A9 chip by two different companies is produced also two different dimensions, and manufacturing.

Late last month it became clear that there are two versions of the Apple A9 chip . Apple has namely two suppliers chosen who both have a different manufacturing process control. Thus Samsung manufactures the Apple A9 chip in a production process of 14 nanometers, while TSMC same chip bake on a 16nm production process. Generally the rule of thumb is that the smaller the process the cooler and more energy efficient the chip.

Apple late Ars Technica that the difference in battery life up to 2 to 3 percent on a full charge. Although you would expect the chip from Samsung is more energy efficient than those of TSMC shows that not to be so in practice. The chip Samsung would slurp more power in this case than that of TSMC. Apple also notes that it has used its own test method and not that of the benchmark apps because that would simulate a real-life situation.

At Ars Technica they have now to lay its hands on two identical iPhones but both with a different chip. That website is now entering its own test release on the iPhone in order to achieve an accurate reading.