Samsung and TSMC iPhone 6s Chips Show Smaller Real-World Battery Impacts Compared to Benchmarks

The news that Apple dual sourced its A9 chips for the iPhone 6s and iPhone 6s Plus has been a point of discussion over the past few weeks, especially when new battery tests on the phones pointed towards the TSMC chips outperforming those made by Samsung. Following the news, several YouTubers have begun creating videos to compare the dual sourced chips in both battery-straining tests and basic real-world scenarios.

In the first video, Austin Evans compared identical models of the iPhone 6s -- one with the Samsung chip and one with the TSMC chip -- and calibrated their screens so they had the exact same brightness. After running the GeekBench 3 battery test until they both ran down to 50 percent battery life, Evans discovered that the TSMC iPhone 6s lasted fifty minutes longer than the Samsung version, "resulting in a nearly 1.5 times difference in battery life." Thermal imaging also showed the Samsung device running hotter than the TSMC version.

Evans also ran a lighter battery test, playing the same hour-long YouTube video on each device to see how a more day-to-day scenario would affect each chip. In the end, he saw only a one percentage point difference in battery drain, noting that while heavy-use cases could see the TSMC chips come out on top, highlighting the differences between benchmarks and real-world usage.


The next video is from Jonathan Morrison, who compared each chip by running a 30-minute timelapse with all the same settings and brightness running on each device. After the test, the Samsung iPhone 6s was down to 84 percent battery, while the TSMC version came in on top with 89 percent remaining. Morrison continued testing the battery strength of each chip with a ten-minute 4k video test, exporting the video file in iMovie, and finishing off by running GeekBench 3. At the end of the full set of tests, the iPhone with the Samsung chip was at 55 percent battery while the TSMC device was at 62 percent.


The takeaway from Morrison and Evans' videos today seems to be that while intense cases like synthetic Geekbench tests designed to push devices to their limits revealed as high as a 22% difference in battery life between devices using the two chips, real-world impacts may be much smaller depending on the mix of activities. In these specific usage patterns shown above, battery life differences between the two processors ranged from 6% to 11%.

Tags: A9, Samsung, TSMC
Related Forum: iPhone

Popular Stories

Generic iOS 18

Apple Seeds Second Release Candidate Versions of iOS 18.2 and More With Genmoji, Image Playground and ChatGPT Integration

Monday December 9, 2024 10:06 am PST by
Apple today seeded the second release candidate versions of upcoming iOS 18.2, iPadOS 18.2, and macOS 15.2 updates to developers and public beta testers for testing purposes, a week after releasing the first RCs. The first iOS 18.2 RC had a build number of 22C150, while the second RC's build number is 22C151. Release candidates represent the final version of beta software that's expected to see a ...
Generic iOS 18

When Is iOS 18.2 Coming Out?

Tuesday December 10, 2024 1:43 am PST by
The next iOS 18.2 update featuring more substantial Apple Intelligence features will be released to the public before the holidays, according to Apple, but we have a more definite timeframe from other sources. In a newsroom article dated October 28 highlighting Apple Intelligence capabilities, Apple states that "new ‌Apple Intelligence‌ features will be available in December." Then in...
iPhone SE 4 Single Camera Thumb 3

iPhone SE 4 Said to Feature 48MP Rear Lens, 12MP TrueDepth Camera

Monday December 9, 2024 4:48 am PST by
Apple's forthcoming iPhone SE 4 will feature a single 48-megapixel rear camera and a 12-megapixel TrueDepth camera on the front, according to details revealed in a new Korean supply chain report. ET News reports that Korea-based LG Innotek is the main supplier of the front and rear camera modules for the more budget-friendly ~$400 device, which is expected to launch in the first quarter of...
iOS 18

Here Are Apple's Full Release Notes for iOS 18.2

Thursday December 5, 2024 11:48 am PST by
Apple seeded the release candidate version of iOS 18.2 today, which means it's going to see a public launch imminently. Release candidates represent the final version of new software that will be provided to the public should no last minute bugs be found, and Apple includes release notes with the RC launch. The iOS 18.2 release notes provide a look at all of the new features that are coming...
Apple MacBook Pro M4 hero

MacBook Pros With OLED Displays Won't Have a Notch, Roadmap Shows

Monday December 9, 2024 7:36 am PST by
Apple plans to remove the notch from the MacBook Pro in a few years from now, according to a roadmap shared by research firm Omdia. The roadmap shows that 14-inch and 16-inch MacBook Pro models released in 2026 will have a hole-punch camera at the top of the display, instead of a notch. It is unclear if there would simply be a pinhole in the display, or if Apple would expand the iPhone's...
New Things Your iPhone Can Do in iOS 18

20 New Things Your iPhone Can Do in iOS 18.2

Friday December 6, 2024 4:42 am PST by
Apple is set to release iOS 18.2 in the second week of December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. There are a handful of new non-AI related feature controls...
vipps nfc tap to pay iphone

World's First Apple Pay Alternative for iPhone Launches in Norway

Monday December 9, 2024 1:28 am PST by
Norwegian payment service Vipps has become the world's first company to launch a competing tap-to-pay solution to Apple Pay on iPhone, following Apple's agreement with European regulators to open up its NFC technology to third parties. Starting December 9, Vipps users in Norway can make contactless payments in stores using their iPhones. The service initially supports customers of SpareBank...
airpods pro 2 gradient

AirPods Pro 3 Expected Next Year: Here's What We Know

Thursday November 28, 2024 3:30 am PST by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch sometime in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as...
iPhone 17 Slim Feature

iPhone 17 'Air' Expected to Be ~2mm Thinner Than iPhone 16 Pro

Friday December 6, 2024 4:07 pm PST by
In 2025, Apple is planning to debut a thinner version of the iPhone that will be sold alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. This iPhone 17 "Air" will be about two millimeters thinner than the current iPhone 16 Pro, according to Bloomberg's Mark Gurman. The iPhone 16 Pro is 8.25mm thick, so an iPhone 17 that is 2mm thinner would come in at around 6.25mm. At 6.25mm,...

Top Rated Comments

randyj Avatar
120 months ago
Maybe the VW programmers helped TSMC with the code so it would report better numbers when it was being benchmarked...
Score: 43 Votes (Like | Disagree)
mattopotamus Avatar
120 months ago
Am I the only one that thinks the difference between 62% and 55% is pretty big? There are plenty of heavy users out there.
Score: 22 Votes (Like | Disagree)
Markoth Avatar
120 months ago
I prefer the one with the smily face, personally.
Score: 19 Votes (Like | Disagree)
Markoth Avatar
120 months ago
And this could all be due to slight variances in manufacturing between the two phones outside of the chips. A true, valid, and scientific test would need a larger sample size.

In the end, I just don't understand the stress people are getting into over this minor issue. It is definitely not worthy of a "gate" label.


More likely click bait to drum up more YouTube ad revenue.
It's basically a sport these days to feel victimized by corporations. This just gives people an excuse to. You'd think people would have better things to do, but I suppose not.
Score: 15 Votes (Like | Disagree)
EllieV Avatar
120 months ago
Just thought I'd point this out. In the last article showing the parity between battery life tests, one of the phones had an Active SIM and the other phone had No SIM and did not have Airplane mode on, which made it drain more than it normally would have.

Why would the one with no sim drain faster? It's not constantly connecting to the cell towers because it doesn't have a SIM, right?
Score: 15 Votes (Like | Disagree)
OldSchoolMacGuy Avatar
120 months ago
Real life use is negligible. Just as I said previously. Nothing but click bait to get some people heated.
Score: 13 Votes (Like | Disagree)