TSMC and Samsung A9 chip, which variant is in your iPhone 6s

Last September, Apple announced the iPhone 6s and iPhone 6s Plus. These two models were met with a virtual round of applause from all Apple fans. According to Apple, the company sold more than 13 million iPhone 6s and iPhone 6s Plus units in the first three days after launch, breaking the record set by the iPhone 6 and iPhone 6 Plus.

At the company’s launch event, Apple told that the phones feature the company’s latest A9 chips, offering faster performance and better battery life. However, you may not have noticed that Apple’s A9 chip is currently being manufactured by two different suppliers: one created by TSMC and one developed by Samsung. You may be wondering which variant is in your iPhone. Luckily, the developer has recently launched an app that tells you exactly which chip is being used inside your iOS device.


For those not in the know, Samsung’s A9 chip is slightly smaller than TSMC’s counterpart. Besides, Samsung’s A9 chip has been manufactured on a 14-nanometer process instead of a 16-nanometer process. According to tech experts, Apple increased orders for chips used for the iPhone 6s and 6s Plus to meet unexpected demand.

According to a report, almost 80% of active iPhone 6s are now using the TSMC chip. 50.7% of active iPhone 6s Plus have the Samsung chip while 49.3 % have the TSMC chip.

How to check if your iPhone has a TSMC or Samsung’s A9 chip


Step 1: Download and install a free app called Battery Memory System Status Monitor from the App Store.

Step 2: Launch the app.

Step 3: Select System tab > System > Model. It will display the model number of the chipset used in your iPhone. Here is something you should know about:

  • N17AP: iPhone 6s with Samsung’s A9 chip.
  • N66AP: iPhone 6s Plus with Samsung’s A9 chip.
  • N71mAP: iPhone 6s with TSMC’s A9 chip.
  • N66mAP: iPhone 6s Plus with TSMC’s A9 chip.

According to Apple, there is a difference between TSMC and Samsung’s A9 chip. Geekbench has recently run some tests on both chips. Specifically, Samsung A9 chip racks up single-core and multi-core score of 2.542 and 4.444 points respectively, while TSMC’s counterpart manages a single-core point of 2.526 and a multi-core score of 4.404 points.

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