Apple Claims TSMC vs Samsung A9 Chip Variants Result in Only 2-3% Difference in 'Real World' Battery Life
Over the past several days, a slew of battery tests on the iPhone 6s and the iPhone 6s Plus have revealed some performance differences between models that have an A9 chip manufactured by TSMC and those with an A9 chip created by Samsung. While various benchmarking and real world usage tests have shown differences of 6 percent to 22 percent, in favor of TSMC chips, Apple says that its own testing has shown battery life variations of only two to three percent.

In a statement given to TechCrunch, Apple says that it has done internal testing and gathered customer data to determine the performance difference between the two chips in the iPhones.
With the Apple-designed A9 chip in your iPhone 6s or iPhone 6s Plus, you are getting the most advanced smartphone chip in the world. Every chip we ship meets Apple's highest standards for providing incredible performance and deliver great battery life, regardless of iPhone 6s capacity, color, or model.
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. It's a misleading way to measure real-world battery life. Our testing and customer data show the actual battery life of the iPhone 6s and iPhone 6s Plus, even taking into account variable component differences, vary within just 2-3% of each other.
Apple says that early battery benchmark tests conducted by customers, such as those we shared yesterday, are not reflective of real world usage conditions. The two to three percent difference that Apple has seen in data gathered from customers is "well within its manufacturing tolerances" and is a level of variation that could be seen between two devices with the same chip.
Apple's statement on real world usage reflects what recent YouTube tests have revealed. Side-by-side battery tests comparing a TSMC iPhone and a Samsung iPhone did not show differences as dramatic as benchmark tests have shown, but those videos are also not quite indicative of real world usage results. On the MacRumors forums, opinions on battery life have been highly mixed. While some users with Samsung chips have reported poor battery life, others have not reported issues.
Popular Stories
iOS 17.2 has been in beta testing for over a month, and it should be released to all users in a few more weeks. The software update includes many new features and changes for iPhones, including the dozen that we have highlighted below. iOS 17.2 is expected to be released to the public in mid-December. To learn about even more features coming in the update, check out our full list. Journal ...
Apple today released iOS 17.1.2 and iPadOS 17.1.2, small updates to the iOS 17 and iPadOS 17 operating systems that Apple introduced in September. iOS 17.1.2 and iPadOS 17.1.2 come a few weeks after the release of iOS 17.1.1, another bug fix update. iOS 17.1.2 and iPadOS 17.1.2 can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update....
Apple made the first beta of iOS 17.2 available to developers in October. Since then we've seen three more betas, and with each iteration Apple continues to add more new features and changes, many of which users have been anticipating for quite a while. Below, we've listed 28 new things that are coming to your iPhone when the finalized version is publicly released this December. 1. Help...
Apple is ending its credit card partnership with Goldman Sachs, according to The Wall Street Journal. Apple plans to stop working with Goldman Sachs in the next 12 to 15 months, and it is not yet clear if Apple has established a new partnership for the Apple Card. Apple and Goldman Sachs will dissolve their entire consumer partnership, including the Apple Card and the Apple Savings account....
Apple is wrapping up development on iOS 17.2, with the update expected to come out in December. While we're getting to the end of the beta testing period, Apple is still tweaking features and adding new functionality. We've rounded up everything new in the fourth beta of iOS 17.2. Default Notification Sound Under Sounds & Haptics, there's a new "Default Alerts" section that allows you to ...
The release of the iPhone 15 Pro and Pro Max saw the introduction of an entirely new user-configurable button known as the Action button, and now, MacRumors has seen extensive evidence confirming Apple is planning to include the Action button on the entire iPhone 16 range. Designs and plans for the Action button date back to at least 2021, as the button was intended for release alongside hapt...
Anker's Black Friday/Cyber Week event is entering its final days this weekend, and it's still offering up to 60 percent off sitewide. There are also a few "mystery boxes" that can include hundreds of dollars in savings, if you're willing to risk not knowing what you're buying ahead of time. All of these sales will end on December 3. Note: MacRumors is an affiliate partner with Anker. When you...
Apple and Paramount have discussed bundling their TV streaming services at a discount, according to a new report by The Wall Street Journal. The companies have talked about offering a combination of Paramount+ and Apple TV+ that would cost less than subscribing to both services separately, according to people familiar with the discussions. The discussions are in their early stages, and it is ...
Earlier this month, Apple announced that it will finally support RCS in the Messages app on the iPhone starting later next year. This change will result in several improvements to the messaging experience between iPhones and Android devices. RCS will become the new default standard for messaging between iPhones and Android devices, but these conversations will still have green bubbles like...
Top Rated Comments