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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%.
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%.
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51 months ago
Maybe the VW programmers helped TSMC with the code so it would report better numbers when it was being benchmarked...
51 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.
51 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?
51 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.
51 months ago
Real life use is negligible. Just as I said previously. Nothing but click bait to get some people heated.
51 months ago
It is definitely not worthy of a "gate" label.
Has anything ever reported on MacRumors been worthy of that dumb label?
51 months ago
Even an extra half hour of battery life makes a huge difference by the end of the day, so consumers have a right to be concerned if the TSMC chips can deliver this regularly. My iPhone 5s now lasts only 5 hours on average, far less than its originally-advertised 8 hours. Apple refuses to give me any option to replace the battery, forcing me instead to risk my phone and void its warranty by doing so through a third party.
Battery life is the number one problem of these high powered devices and it's the very reason these tests are being done in the first place. If battery life wasn't an issue nobody would care who made the chip and whether one lasts a bit longer. But it is an issue and people do care as evidenced by how much this issue is blowing up.
Apple is now in full-on damage control and have shot themselves in the foot by consistently failing to address battery life in their phones, preferring instead to make them ever slimmer and even taking the opportunity to (or being forced to) shave off some battery capacity in the latest models.
Battery life is the number one problem of these high powered devices and it's the very reason these tests are being done in the first place. If battery life wasn't an issue nobody would care who made the chip and whether one lasts a bit longer. But it is an issue and people do care as evidenced by how much this issue is blowing up.
Apple is now in full-on damage control and have shot themselves in the foot by consistently failing to address battery life in their phones, preferring instead to make them ever slimmer and even taking the opportunity to (or being forced to) shave off some battery capacity in the latest models.
51 months ago
[USER=3]@MacRumors[/USER]
How can you tell that the difference in real life is almost unnoticeable when in more than half the battery the difference is already 7%??
When the usage goes all the way down the difference should be 15-17% which represents at least 1h of usage.
This is not acceptable for a device that costs 860€ (64GB 6S) here in Europe and specially when I pay the same as everyone else and I can have an iPhone that is not the same as others.
1h-1h30 of usage is a great deal and should not be taken lightly as you are trying to do, trying to cover Apple mistake.
This is one of the worst quality control situations in Apple history!!!
How can you tell that the difference in real life is almost unnoticeable when in more than half the battery the difference is already 7%??
When the usage goes all the way down the difference should be 15-17% which represents at least 1h of usage.
This is not acceptable for a device that costs 860€ (64GB 6S) here in Europe and specially when I pay the same as everyone else and I can have an iPhone that is not the same as others.
1h-1h30 of usage is a great deal and should not be taken lightly as you are trying to do, trying to cover Apple mistake.
This is one of the worst quality control situations in Apple history!!!
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