Apple S9 Full Specs

Summary

2 Cores 2 Threads 2.02GHz

TDP 2W

Bandwidth 25.6GB/s LPDDR5

iGPU S9

Peak·FP32·FP16 112.6 GFLOPSFP16

Core Config

2 Cores

2 Threads

Clocks

Base Clock 2.02GHz

Overclocking Locked

Cache

L1i 128KB

L1d 64KB

L2 4MB shared

SLC Cache 4MB

Memory

Type LPDDR5

Max Memory 2GB

ECC No

Channels 1

Bus Width 32-bit

Speed 6400MT/s

Bandwidth 25.6GB/s

Bandwidth Calculator Channels Transfer Rate6400MT/s Calculated Bandwidth 25.6GB/s

Power & Thermals

TDP 2W

iGPU

iGPU S9

Shaders 128

Boost Clock 440MHz

Peak·FP32·FP16 112.6 GFLOPSFP16

NPU

NPU Model H15 Crius

NPU Cores 4

Performance 4.3 TOPSFP16

Chip

Manufacturer Apple

ISA AArch64

Architecture Apple Silicon 12ARMv8.5-A

Family S Series

Branding

Codename Caicos Sawtooth P-Core

Market Segment Smartwatch

Release Date Sep 12, 2023

Fabrication

Foundry TSMC

Fabrication Node N4P

Die Size 41mm²

Transistor Count 5.6 Billion

Transistor Density 135 MTr/mm²

Images

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Used In

Smartwatches Apple Watch Series 9(41mm)Apple Watch Series 9(45mm)Apple Watch Series 9 SS(41mm) Show 2 more

Competitors

AppleS9 vs CPU AppleS10 AppleS9 vs CPU AppleS8 AppleS9 vs CPU AppleS7 Show 12 more