Even portfolios that are perfectly indexed against a benchmark behave
differently than the benchmark, even though this difference on a day - to - day, quarter - to - quarter or year - to - year basis may be ever so slight.
There's no indication the two chips perform
differently when it comes to speed, but battery
benchmark tests on iPhones with TSMC chips and iPhones with Samsung chips initially suggested there could be some significant battery life differences between the two devices, with the TSMC iPhone 6s lasting approximately two hours longer
than the Samsung iPhone 6s.