Apple has cleared the controversy surrounding the new iPhone where some users claimed that iPhone 6S phones get different battery lives depending on whether they embed a Samsung or TSMC made processor.

According to the company, battery life between two otherwise identical iPhone 6S or 6S Plus models may differ, but only by 2-3%.

The issue, called "Chipgate" by some, arises from the fact that Apple's A9 processor, which drives the iPhone 6S and 6S Plus, is made by two different manufacturers - Samsung and TSMC.

As per some reports, including the one by tech video producer Austin Evans shows that the iPhone with the TSMC chip runs cooler and has a better battery life than the one with the Samsung chip.

There are two stipulations to the reports so far- They're based on benchmarking software, which isn't always suggestive of real-life use, and they have a very small sample size.

Apple is highlighting exactly these two points.

In a statement to Ars Technica Apple said, "Certain manufactured lab tests which run the processors with a continuous heavy workload until the battery depletes are not representative of real-world usage, since they spend an unrealistic amount of time at the highest CPU performance state."

A similar controversy originated in 2013, when it was found that Apple's MacBook Pros can come with two different LCD panels, one manufactured by LG, and the other by Samsung. However, Apple never addressed the issue officially.