S9
S3
Apple S9 vs Apple S3 Full Specs
2 Cores 2 Threads 2.02GHz | 2 Cores 2 Threads 780MHz |
TDP 2W | TDP 2W |
Bandwidth 25.6GB/s LPDDR5 | Bandwidth 12.8GB/s LPDDR4 |
iGPU | iGPU |
·· 112.6 GFLOPSFP16 | ·· 57.6 GFLOPSFP16 |
S925.6GB/s
S312.8GB/s2 Cores | 2 Cores |
2 Threads | 2 Threads |
Base Clock 2.02GHz | Base Clock 780MHz |
Overclocking Locked | Overclocking Locked |
L1i 128KB | L1i 32KB |
L1d 64KB | L1d 32KB |
L2 4MB shared | L2 512KB |
SLC Cache 4MB | SLC Cache - |
Type LPDDR5 | Type LPDDR4 |
Max Memory 2GB | Max Memory 768MB |
ECC No | ECC No |
Channels 1 | Channels 1 |
Bus Width 32-bit | Bus Width 32-bit |
Speed 6400MT/s | Speed 3200MT/s |
Bandwidth 25.6GB/s | Bandwidth 12.8GB/s |
Bandwidth Calculator Channels Transfer Rate ·· | Bandwidth Calculator Channels Transfer Rate ·· |
TDP 2W | TDP 2W |
iGPU | iGPU |
Shaders 128 | Shaders 32 |
Boost Clock 440MHz | Boost Clock 450MHz |
·· 112.6 GFLOPSFP16 | ·· 57.6 GFLOPSFP16 |
NPU Model H15 Crius | NPU Model - |
NPU Cores 4 | NPU Cores - |
Performance 4.3 TOPSFP16 | Performance - |
Modem Model - | Modem Model X7 |
Peak Down - | Peak Down Up to 300Mbps |
Peak Up - | Peak Up Up to 50Mbps |
Manufacturer | Manufacturer |
ISA AArch64 | ISA AArch32 |
Architecture Apple Silicon 12ARMv8.5-A | Architecture |
Family | Family |
Branding  | Branding  |
Codename Caicos Sawtooth P-Core | Codename - Cortex-A7P-Core |
Market Segment Smartwatch | Market Segment Smartwatch |
Release Date Sep 12, 2023 | Release Date Sep 22, 2017 |
Part Number APL S9 | Part Number APL S3 |
Foundry TSMC | Foundry Samsung |
Fabrication Node N4P | Fabrication Node 28nm |
Die Size 41mm² | Die Size 34mm² |
Transistor Count 5.6B | Transistor Count 338M |
Transistor Density 135 MTr/mm² | Transistor Density 10 MTr/mm² |