Samsung vs TSMC: no 'Chipgate' with the iPhone 6s, tests Consumer Reports
Using the Lirum Info app, the model number that has an (m) in it, is with a TSMC chip
After running network connectivity and Wi-Fi browsing tests in identical scenarios, Consumer Reports basically found out that the difference in battery lives between the two iPhone 6s units was less than 2%, while the difference in heat emissions was about 1% - certainly nothing to get overly excited about, so there you have it, another "gate" bites the dust.
source: ConsumerReports
Things that are NOT allowed: