DID you know there are 2 different manufacturers of the A9 chipset inside the heart of your new iphone6s or iphone6s plus ?

one of them SAMSUNG and the other TSMC . as you can see from the picture above from chipworks .

whats the difference ?  SIZE ! but not everyone agrees that bigger is better . heres why :

At the end of last month, it was discovered by Chipworks that Apple used two separate manufacturers to cover the manufacturing needs of the A9 chips found in the new iPhone 6s and iPhone 6s Plus. Notably, the Samsung version of the A9 chip, which measured at 96mm², was smaller than the TSMC version of the A9 chip, which measured in at 104.5mm².

Many had figured that the smaller Samsung A9 chip was the better chip, being that it was smaller and smaller die processes could potentially lead to improvements in power efficiency over the larger TSMC A9 chip, but is that really the case?

Recent benchmarks shared by Reddit user raydizzle compare a Geekbench battery life score between two iPhone 6s Plus devices, which had the same exact applications, settings, and backups as one another – one of them reportedly had a Samsung A9 chip, and the other reportedly had a TSMC A9 chip. The results are actually impressive – TSMC’s A9 chip was able to withstand nearly two hours more of battery benchmarking than Samsung’s was:

TSMC left, and Samsung right

Other benchmarks have also shown that the TSMC A9 chip may be marginally faster than the Samsung A9 chip as well, but the differences are essentially impossible to tell without premium benchmarking software. In terms of battery life on the other hand, a two-hour different is pretty huge.

Fortunately TSMC is found powering most of Apple’s iPhone 6s and iPhone 6s Plus models, in what is estimated to be a 60/40 split, so your chances of ending up with a TSMC-powered iPhone is higher than your chances of ending up with a Samsung-powered iPhone.

If you’re curious what chip you may have inside of your new iPhone, you can use an iOS application called Lirum Device Info Lite – System Monitor (first spotted by Engadget) to find out what chip you have under the hood. If the application shows a model number N66AP (in the iPhone 6s plus) or N71AP (in the iPhone 6s), then you have the Samsung A9 chip. If the application shows a model number N66MAP (in the iPhone 6s plus) or N71MAP (in the iPhone 6s), then you have the TSMC A9 chip.