Apple S1 vs Apple S9 Full Specs
1 Cores 1 Threads 520MHz | 2 Cores 2 Threads 2.02GHz |
TDP 2W | TDP 2W |
Bandwidth 6.4GB/s LPDDR3 | Bandwidth 25.6GB/s LPDDR5 |
iGPU | iGPU |
·· 6.4 GFLOPSFP32 | ·· 112.6 GFLOPSFP16 |
S16.4GB/s
S925.6GB/s1 Cores | 2 Cores |
1 Threads | 2 Threads |
Base Clock 520MHz | Base Clock 2.02GHz |
Overclocking Locked | Overclocking Locked |
L1i 32KB | L1i 128KB |
L1d 32KB | L1d 64KB |
L2 256KB | L2 4MB shared |
SLC Cache - | SLC Cache 4MB |
Type LPDDR3 | Type LPDDR5 |
Max Memory 512MB | Max Memory 2GB |
ECC No | ECC No |
Channels 1 | Channels 1 |
Bus Width 32-bit | Bus Width 32-bit |
Speed 1600MT/s | Speed 6400MT/s |
Bandwidth 6.4GB/s | Bandwidth 25.6GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 6.4GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 25.6GB/s |
TDP 2W | TDP 2W |
iGPU | iGPU |
Shaders 16 | Shaders 128 |
Boost Clock 200MHz | Boost Clock 440MHz |
·· 6.4 GFLOPSFP32 | ·· 112.6 GFLOPSFP16 |
NPU Model - | NPU Model H15 Crius |
NPU Cores - | NPU Cores 4 |
Performance - | Performance 4.3 TOPSFP16 |
Manufacturer | Manufacturer |
ISA AArch32 | ISA AArch64 |
Architecture | Architecture Apple Silicon 12ARMv8.5-A |
Family | Family |
Branding  | Branding  |
Codename - Cortex-A7P-Core | Codename Caicos Sawtooth P-Core |
Market Segment Smartwatch | Market Segment Smartwatch |
Release Date Apr 24, 2015 | Release Date Sep 12, 2023 |
Foundry Samsung | Foundry TSMC |
Fabrication Node 28nm | Fabrication Node N4P |
Die Size 34mm² | Die Size 41mm² |
Transistor Count 338 Million | Transistor Count 5.6 Billion |
Transistor Density 10 MTr/mm² | Transistor Density 135 MTr/mm² |
No images available
No images available