In the wake of the so called "Chipgate," many iPhone 6s and 6s Plus owners are concerned with what brand of A9 processor powers their phones. The mostly unfounded concern arose when, a little over a week ago, some benchmarks showed that the slightly larger 16nm TSMC brand A9 chip was 20% more efficient (in terms of power consumption) than the 14nm Samsung version.
Additional testing over the past week has shown that the difference is nothing to lose sleep over. Consumer Reports concluded that Chipgate is basically nonsense akin to the overblown Bendgate affair last year. Their tests resulted in a less than 1 percent difference between the two chips. On the other hand, Ars Technica's test results did show a marked difference in one scenario. While most of their tests showed virtually no difference, their Geekbench 3 test, which puts the processors under a heavy load, resulted in the TSMC powered phone lasting 28% longer.
Apple quickly pooh-poohed the Geekbench test, saying it was "unrealistic" and "a misleading way to measure real-world battery life" (PCMag). The difference between the chips, if one even exists, is likely too small for the average user to notice, but if you are curious anyway as to what chip is powering your phone, there is a way to find out.
- N71mAP - iPhone 6s with a TSMC manufactured A9 processor
- N66mAP - iPhone 6s Plus with a TSMC manufactured A9 processor
- N71AP - iPhone 6s with a Samsung manufactured A9 processor
- N66AP - iPhone 6s Plus with a Samsung manufactured A9 processor
Although I was mentally crossing my fingers that I had the TSMC version, it wasn't so. That said, I've been very pleased with my 6s' battery performance, and I think this whole hubbub is much ado about nothing. Let us know in the comments if you've had any serious battery issues with your 6s or 6s Plus, and what make your processor is.