
Apple S9 SiP

The Apple S9 SiP (System in a Package) is a 64-bit processor with two cores (Sawtooth Dual-Core) that is used in the Apple Watch Series 9. The two CPU cores are based on the same microarchitecture as in the Apple A15 SoC. The chip also includes a Neural Engine (with 4 cores) for AI tasks for the first time.
The S9 offers 64 GB internal memory, L1 GPS, GNSS, Galileo and BaeiDou, WLAN 4 (802.11n), Bluetooth 5.3), and LTE / UMTS (optional). The ultra-wideband chip Apple U1 is also integrated.
The chip is manufactured in the modern 4nm process at TSMC (N4P).
| Codename | Thunder |
| Clock Rate | 1800 MHz |
| Number of Cores / Threads | 2 / 2 |
| Manufacturing Technology | 4 nm |
| 64 Bit | 64 Bit support |
| Architecture | ARM |
| Announcement Date | 09/12/2023 |
Benchmarks
* Smaller numbers mean a higher performance
Reviews for the Apple S9 SiP processor


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