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.

a9chipsiphone6s
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.

Tags: Samsung, TSMC, A9

Top Rated Comments

(View all)
Avatar
65 months ago

so...basically "you're testing it wrong."

Jesus--give that tired meme a rest.
Score: 68 Votes (Like | Disagree)
Avatar
65 months ago
so...basically "you're testing it wrong."
Score: 50 Votes (Like | Disagree)
Avatar
65 months ago
To be fair I'm surprised they made a statement at all!
Score: 31 Votes (Like | Disagree)
Avatar
65 months ago

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.

Funny, two weeks ago nobody with a Samsung chip had a battery life issue. Hell, they were celebrating because they had a Samsung chip. Now they all have "issues". This forum has jumped the shark.
Score: 23 Votes (Like | Disagree)
Avatar
65 months ago
Apple can't win. People scream for more phones on launch. Apple delivers. People scream because they don't get the part manufacturer they want. Some of you people should really channel all this wasted energy into something more productive.
Score: 21 Votes (Like | Disagree)
Avatar
65 months ago
Score: 16 Votes (Like | Disagree)

Top Stories

'iPhone 12 mini' Name Reappears in Leaked Apple iPhone 12 Case Stickers

Friday September 25, 2020 1:58 am PDT by
Earlier this week a proven leaker claimed that the iPhone 12 lineup would be named "iPhone 12 mini," "iPhone 12," "iPhone 12 Pro," and "iPhone 12 Pro Max," and today the same nomenclature has appeared again in a photo depicting alleged stickers from unreleased Silicone iPhone cases originating from Apple's international distribution center in Ireland. The photo shows three stickers with the...

Top Stories: iOS 14 Feature Tour, 'iPhone 12 mini' Rumors, Apple Watch Band Controversy

Saturday September 26, 2020 6:00 am PDT by
Things started to calm down a bit this week following last week's rush of media event, Apple Watch and iPad launches, and the release of iOS 14 and other operating updates. But that doesn't mean there wasn't still a lot of news, from digging deeper into iOS 14 to more iPhone 12 rumors to the uproar over trying to exchange band sizes on the new Apple Watch. On top of all of that, we heard...

Apple Releases iOS 14.0.1 With Fix for Bug That Resets Default Apps After Rebooting

Thursday September 24, 2020 10:12 am PDT by
Apple today released iOS 14.0.1, the first update to the iOS 14 operating system that was released on September 16. Today's update is a bug fix update addressing issues that weren't able to be fixed in the initial iOS 14 launch. The iOS 14.0.1 update is available on all eligible devices over-the-air in the Settings app. To access the new software, go to Settings > General > Software Update. ...

New Images Leak of iPhone 12 Braided USB-C to Lightning Cable

Thursday September 24, 2020 2:37 am PDT by
Rumors suggest Apple's upcoming iPhone 12 models will ship with a new Lightning to USB-C cable that includes a braided fabric design. Images of the purported cables were leaked in July, and today leaker Mr White has shared new images that give us a closer look at what we might get included in the iPhone 12 box. The photos show a USB-C to Lightning cable with a clearly braided design rather...

New Version of Microsoft Office Coming Next Year That Won't Require a Subscription

Thursday September 24, 2020 1:53 am PDT by
Microsoft will next year offer a new perpetual release of Microsoft Office for Mac and Windows that doesn't require a subscription to use, according to the software giant (via Windows Central). "Microsoft Office will also see a new perpetual release for both Windows and Mac, in the second half of 2021," said Microsoft in a blog post announcing the next version of its Exchange server,...

Video Offers Closer Look at Apple Face Mask

Friday September 25, 2020 5:25 am PDT by
YouTube channel Unbox Therapy has today shared a new video giving a closer look at Apple's reusable face masks for corporate and retail employees. Apple's own face mask was designed by the company's Engineering and Industrial Design teams amid the global health crisis for corporate and retail employees, and the boxes include Apple's famous "Designed by Apple in California" text. The...

Upcoming Xbox App Update Will Let Xbox Users Stream Games to iPhone and iPad

Friday September 25, 2020 11:58 am PDT by
Microsoft is testing a new version of its Xbox app that will let Xbox users play games remotely on their iPhones and iPads using streaming functionality. The new feature was rolled out to TestFlight users this morning. The Xbox streaming option is distinct from Microsoft's xCloud service, which it has been clashing with Apple over. xCloud is designed to stream games from Microsoft's servers, ...

Apple Releases macOS Catalina 10.15.7 With Fixes for WiFi Bug, 27-Inch iMac Graphics Issues

Thursday September 24, 2020 10:32 am PDT by
Apple today released macOS Catalina 10.15.7, the latest update to the macOS Catalina software. macOS Catalina 10.15.7 fixes several major bugs that Mac users have been experiencing, and it comes a month after the latest macOS Catalina release. The ‌‌‌macOS Catalina‌‌‌ 10.15.6 Supplemental Update can be downloaded from the Mac App Store using the Update feature in the System...

iOS 14: 'Phoenix 2' Space Shooter Delivers Playable Demo via App Clips

Saturday September 26, 2020 2:08 pm PDT by
One of the new features that arrived in iOS 14 is called App Clips. App Clips is described by Apple to be a "small part of your app" that can be available to users at just the right moment.App Clips focus on finishing one task quickly. An ideal App Clip experience allows users to open and complete a task in seconds. Instead of requiring an App Store download, they can be loaded and run via...

Apple's iPhone 12 Event Could Happen on October 13 Based on Rumors From Mobile Operators

Wednesday September 23, 2020 11:51 am PDT by
Apple's upcoming iPhone-centric event could perhaps be held on Tuesday, October 13, according to information shared with MacRumors by an employee at a UK cellular carrier. There's no way for us to confirm the dates at this point in time nor are we sure on the credibility of the source, but even without a rumor, Tuesday, October 13 is a good guess based on Apple's historic launch timelines, ...