Apple A8X vs Apple A15 Bionic (iPad) Full Specs
3 Cores 3 Threads 1.5GHz | 6 Cores(2P+4E) 6 Threads(2P+4E) 2.93GHz |
TDP 8W | TDP 5W |
Bandwidth 25.6GB/s LPDDR3 | Bandwidth 34.1GB/s LPDDR4X |
iGPU | iGPU |
·· 486.4 GFLOPSFP16 | ·· 1.71 TFLOPSFP16 |
A8X447
A15 Bionic (iPad)2,1573 Cores 3P - | 6 Cores 2P 4E |
3 Threads 3P - | 6 Threads 2P 4E |
Base Clock 1.5GHz | Base Clock 2.93GHz |
Overclocking Locked | Overclocking Locked |
L1i 64KB P - | L1i 192KB P 128KB E |
L1d 64KB P - | L1d 128KB P 64KB E |
L2 2MB P shared - | L2 12MB P shared 4MB E shared |
L3 4MB | L3 - |
SLC Cache - | SLC Cache 32MB |
Type LPDDR3 | Type LPDDR4X |
Max Memory 2GB | Max Memory 4GB |
ECC No | ECC No |
Channels 2 | Channels 1 |
Bus Width 128-bit | Bus Width 64-bit |
Speed 1600MT/s | Speed 4266MT/s |
Bandwidth 25.6GB/s | Bandwidth 34.1GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 25.6GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 34.1GB/s |
TDP 8W | TDP 5W |
- | PCIe PCIe 4.0 x47.9GB/sBandwidth |
iGPU | iGPU |
Shaders 256 | Shaders 640 |
Boost Clock 475MHz | Boost Clock 1.34GHz |
·· 486.4 GFLOPSFP16 | ·· 1.71 TFLOPSFP16 |
NPU Model - | NPU Model H14 Bia |
NPU Cores - | NPU Cores 16 |
NPU Clock - | NPU Clock 1.94GHz |
Performance - | Performance 15.8 TOPSFP16 |
Manufacturer | Manufacturer |
ISA AArch64 | ISA AArch64 |
Architecture Apple Silicon 3ARMv8.0-A | Architecture Apple Silicon 11ARMv8.5-A |
Family | Family |
Branding  | Branding  |
Codename Capri A8XVariant TyphoonP-Core - | Codename Ellis A15Variant AvalancheP-Core BlizzardE-Core |
Market Segment Tablet | Market Segment Tablet |
Release Date Oct 22, 2014 | Release Date Sep 24, 2021 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 20nm | Fabrication Node N5P |
Die Size 128mm² | Die Size 108mm² |
Transistor Count 3 Billion | Transistor Count 15 Billion |
Transistor Density 23 MTr/mm² | Transistor Density 139 MTr/mm² |
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Tablets | Tablets |