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

spiderman0616 Avatar
73 months ago
so...basically "you're testing it wrong."
Jesus--give that tired meme a rest.
Score: 68 Votes (Like | Disagree)
farewelwilliams Avatar
73 months ago
so...basically "you're testing it wrong."
Score: 50 Votes (Like | Disagree)
johnalan Avatar
73 months ago
To be fair I'm surprised they made a statement at all!
Score: 31 Votes (Like | Disagree)
jpgr15 Avatar
73 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)
jpgr15 Avatar
73 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)
Surf Donkey Avatar
73 months ago
Score: 16 Votes (Like | Disagree)

Top Stories

General Music and AirPod 3 Feature

Rumor: Apple to Announce Third-Generation AirPods and HiFi Apple Music Tier on May 18

Thursday May 13, 2021 10:32 pm PDT by
A new rumor suggests that Apple will announce the third-generation AirPods and the recently rumored HiFi, or high-fidelity Apple Music tier, on Tuesday, May 18, via a press release on its website. The new rumor comes from Apple YouTuber Luke Miani who shared the alleged exclusive news with the AppleTrack website. According to the YouTuber, Apple plans to release the next-generation AirPods...
apple park drone june 2018 2

Apple Fires Newly Hired Ex-Facebook Product Manager Following Revelations of Past Misogynistic Comments

Thursday May 13, 2021 12:10 am PDT by
Apple has fired Antonio García Martínez, an ex-Facebook product manager and author of the controversial book "Chaos Monkeys," following public and internal calls for removal and investigation due to past misogynistic statements, The Verge reports. Apple hired Martínez earlier this week to join its ads team, however, comments that Martínez made in the past sparked condemnation from users...
imac m1 blue isolated 16x9 500k

M1 iMac is Up to 56% Faster Than Prior-Generation High-End 21.5-Inch iMac

Wednesday May 12, 2021 10:03 am PDT by
Apple's M1 iMacs are set to start delivering to customers next week, and ahead of the official launch day, benchmarks for the machines have been showing up on Geekbench, likely from reviewers who are testing them. It will come as no surprise that M1 iMac benchmarks are right on par with benchmarks for the M1 MacBook Pro, MacBook Air, and Mac mini, coming in with an average single-core score...
2021 mbp hdmi slot 3d

2021 MacBook Pro Leaks Confirm Returning MagSafe and Ports

Friday May 14, 2021 3:06 am PDT by
Apple's upcoming MacBook Pro models are expected to feature a number of major changes such as larger display options and powerful new Apple silicon chips. Among the more surprising updates to this year's MacBook Pro models is the return of three ports that have been missing from the machines for over five years. Expected to come in 14- and 16-inch sizes, the 2021 MacBook Pro models are...
fortnite apple logo 2

Judge in Epic vs. Apple Case Floats Potential Compromise

Wednesday May 12, 2021 3:54 pm PDT by
In the ongoing legal battle between Apple and Epic Games, the two companies are this week calling up their expert witnesses to argue their points before Judge Yvonne Gonzalez Rogers, who will make a decision in the case after a three week trial. Expert testimony is not as exciting as some of the leaked App Store documents that were highlighted last week, especially as much of what's being...
google photos

PSA: Google Photos Unlimited Storage Ends Next Month, Here's How to Export Your Pictures to iCloud

Thursday May 13, 2021 5:26 am PDT by
For as long as it's existed, Google Photos has offered free unlimited storage for uploading images at a reduced yet good enough quality for most users. From June 1, 2021, however, all photos and videos uploaded to Google accounts will count against users' cloud storage. If you've been relying on Google to back up your media library, it may be time to move that content elsewhere. This article...
AirTag in Envelope Feature 2

AirTag Used to Successfully Track a Mailed Package Across the UK

Wednesday May 12, 2021 8:44 am PDT by
An Apple customer in the United Kingdom has successfully used Apple's Find My network to track an AirTag as it was being sent by mail to a friend in a completely different city. Outlined in a blog post at Intego, Kirk McElhearn said he taped an AirTag to a piece of card, wrapped it inside a small bubble envelope, and then sent it on its way. Kirk lives in the small town of...
m1 ipad pro chip

M1 iPad Pro Over 50% Faster Than Previous Generation in Early Benchmarks

Tuesday May 11, 2021 11:56 am PDT by
Last month, Apple introduced a new iPad Pro with the same M1 chip found in the latest Macs, and early benchmark results indicate that the M1 iPad Pro is over 50% faster than the previous-generation iPad Pro. Based on five legitimate Geekbench 5 results (here's the fifth) for the fifth-generation 12.9-inch iPad Pro with the M1 chip, the device has average single-core and multi-core scores of...
prosser macbook air colors stacked

Images Reveal Colorful New MacBook Air Design

Tuesday May 11, 2021 5:06 am PDT by
Apple's next MacBook Air will feature a completely new design and come in a range of colors like the 24-inch iMac, according to leaker Jon Prosser, who has now released supposedly accurate renders of the new machines based on leaked images. In a new video uploaded to YouTube channel Front Page Tech, Prosser elaborated on his previous prediction that Apple's next-generation MacBook Air models ...
iPhone 13 Camera Backs

iPhone 13 Models Will Be Slightly Thicker and Will Have Larger Camera Bumps

Monday May 10, 2021 10:41 am PDT by
Apple's upcoming iPhone 13 models will be slightly thicker than the iPhone 12 models and will also feature larger, thicker camera bumps with lenses that protrude less, according to iPhone 13 schematics seen by MacRumors. The new iPhone 13 and 13 Pro models are expected to feature a thickness of 7.57mm, up from 7.4mm in the iPhone 12 models. That's an increase of 0.17mm, which won't be hugely ...